{"id":"CVE-2026-85732","revision":null,"records":[{"revision":"3eca12700dd24fa988da34df78016a01","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-85732","aliases":[],"title":"oras-go: Blind SSRF via unvalidated Link header URL in pagination allows internal network probing","description":"oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tags, Referrers, and Repositories pagination operations then issue a GET request to the attacker-selected URL from the victim's network, allowing blind server-side request forgery against internal services. The response body is not returned to the attacker, but timing and error differences can reveal service reachability, and credentials may be attached when the credential store has an entry for the target host. Exploitation requires a victim to perform a pagination-based listing operation against a malicious registry. The maintainer identifies this report as a duplicate of GHSA-3hr5-mjrr-hfjh and states that remediation is consolidated in that earlier advisory. The consolidated issue is fixed in version 2.6.2.","state":0,"publishedAt":"2026-09-16T16:22:14.881+00:00","modifiedAt":"2026-09-16T17:29:51.661+00:00","affected":[{"ecosystem":"Vendor product","name":"oras-go","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"oras-project\",\n                    \"product\": \"oras-go\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.6.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://github.com/oras-project/oras-go/security/advisories/GHSA-h7vf-4x9w-h99v","https://github.com/oras-project/oras-go/commit/31da1963f8c327dd089cd29faeae95cf0fc50842","https://github.com/oras-project/oras-go/releases/tag/v2.6.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-85732","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-85732","identifiers":["CVE-2026-85732"]},"retained":false,"historicalAffected":[]},{"revision":"ad20aad91c66413483b7eb10e62ba98b","observedAt":"2026-11-11T17:01:59.489+00:00","statement":{"source":"euvd","id":"EUVD-2026-80871","aliases":["CVE-2026-85732","GHSA-h7vf-4x9w-h99v"],"title":"oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tag…","description":"oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tags, Referrers, and Repositories pagination operations then issue a GET request to the attacker-selected URL from the victim's network, allowing blind server-side request forgery against internal services. The response body is not returned to the attacker, but timing and error differences can reveal service reachability, and credentials may be attached when the credential store has an entry for the target host. Exploitation requires a victim to perform a pagination-based listing operation against a malicious registry. The maintainer identifies this report as a duplicate of GHSA-3hr5-mjrr-hfjh and states that remediation is consolidated in that earlier advisory. The consolidated issue is fixed in version 2.6.2.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","score":4.7,"severity":null}],"references":["https://github.com/oras-project/oras-go/security/advisories/GHSA-h7vf-4x9w-h99v","https://github.com/oras-project/oras-go/commit/31da1963f8c327dd089cd29faeae95cf0fc50842","https://github.com/oras-project/oras-go/releases/tag/v2.6.2"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-80871","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 16, 2026, 4:22:14 PM","dateUpdated":"Sep 16, 2026, 5:29:51 PM"},"relatedAdvisories":[{"id":"openSUSE-SU-2026:11848-1","title":"helm-4.3.0-2.1 on GA media","vulnerabilityIds":["CVE-2026-85732"]},{"id":"openSUSE-SU-2026:21983-1","title":"Security update for helm","vulnerabilityIds":["CVE-2026-33814","CVE-2026-35204","CVE-2026-35205","CVE-2026-35206","CVE-2026-41178","CVE-2026-41888","CVE-2026-48978","CVE-2026-50151","CVE-2026-50163","CVE-2026-56852","CVE-2026-56854","CVE-2026-56855","CVE-2026-56864","CVE-2026-56865","CVE-2026-78662","CVE-2026-81871","CVE-2026-81872","CVE-2026-85732"]},{"id":"SUSE-SU-2026:24247-1","title":"Security update for helm","vulnerabilityIds":["CVE-2026-63209","CVE-2026-81870","CVE-2026-85732"]},{"id":"SUSE-SU-2026:23973-1","title":"Security update for helm","vulnerabilityIds":["CVE-2026-33814","CVE-2026-35204","CVE-2026-35205","CVE-2026-35206","CVE-2026-41178","CVE-2026-41888","CVE-2026-48978","CVE-2026-50151","CVE-2026-50163","CVE-2026-56852","CVE-2026-56854","CVE-2026-56855","CVE-2026-56864","CVE-2026-56865","CVE-2026-78662","CVE-2026-81871","CVE-2026-81872","CVE-2026-85732"]},{"id":"openSUSE-SU-2026:11832-1","title":"helm3-3.22.0-1.1 on GA media","vulnerabilityIds":["CVE-2026-85731","CVE-2026-85732"]},{"id":"SUSE-SU-2026:24120-1","title":"Security update for helm","vulnerabilityIds":["CVE-2026-63209","CVE-2026-81870","CVE-2026-85732"]},{"id":"openSUSE-SU-2026:22057-1","title":"Security update for helm","vulnerabilityIds":["CVE-2026-63209","CVE-2026-81870","CVE-2026-85732"]},{"id":"SUSE-SU-2026:23984-1","title":"Security update for helm","vulnerabilityIds":["CVE-2026-33814","CVE-2026-35204","CVE-2026-35205","CVE-2026-35206","CVE-2026-41178","CVE-2026-41888","CVE-2026-48978","CVE-2026-50151","CVE-2026-50163","CVE-2026-56852","CVE-2026-56854","CVE-2026-56855","CVE-2026-56864","CVE-2026-56865","CVE-2026-78662","CVE-2026-81871","CVE-2026-81872","CVE-2026-85732"]},{"id":"SUSE-SU-2026:24282-1","title":"Security update for helm","vulnerabilityIds":["CVE-2026-33814","CVE-2026-35204","CVE-2026-35205","CVE-2026-35206","CVE-2026-41178","CVE-2026-41888","CVE-2026-48978","CVE-2026-50151","CVE-2026-50163","CVE-2026-56852","CVE-2026-56854","CVE-2026-56855","CVE-2026-56864","CVE-2026-56865","CVE-2026-63209","CVE-2026-78662","CVE-2026-81870","CVE-2026-81871","CVE-2026-81872","CVE-2026-85732"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-80871","identifiers":["EUVD-2026-80871","CVE-2026-85732","GHSA-h7vf-4x9w-h99v"]},"retained":false,"historicalAffected":[]},{"revision":"127dc86e22a844788f6d73dc40412258","observedAt":"2026-10-25T16:19:16.24+00:00","statement":{"source":"nvd","id":"CVE-2026-85732","aliases":[],"title":"oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tag…","description":"oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tags, Referrers, and Repositories pagination operations then issue a GET request to the attacker-selected URL from the victim's network, allowing blind server-side request forgery against internal services. The response body is not returned to the attacker, but timing and error differences can reveal service reachability, and credentials may be attached when the credential store has an entry for the target host. Exploitation requires a victim to perform a pagination-based listing operation against a malicious registry. The maintainer identifies this report as a duplicate of GHSA-3hr5-mjrr-hfjh and states that remediation is consolidated in that earlier advisory. The consolidated issue is fixed in version 2.6.2.","state":0,"publishedAt":"2026-09-16T17:18:16+00:00","modifiedAt":"2026-09-16T18:17:18.07+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://github.com/oras-project/oras-go/commit/31da1963f8c327dd089cd29faeae95cf0fc50842","https://github.com/oras-project/oras-go/releases/tag/v2.6.2","https://github.com/oras-project/oras-go/security/advisories/GHSA-h7vf-4x9w-h99v"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85732","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-918"],"productCriteria":[],"sourceDates":{"published":"2026-09-16T17:18:16.000","lastModified":"2026-09-16T18:17:18.070"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-85732","identifiers":["CVE-2026-85732"]},"retained":false,"historicalAffected":[]},{"revision":"c1187c11dd1c40fb9efdec3930bd8ee1","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-h7vf-4x9w-h99v","aliases":["CVE-2026-85732","GO-2026-6497"],"title":"oras-go: Blind SSRF via unvalidated Link header URL in pagination allows internal network probing","description":"## Summary\n\noras-go's pagination helper `parseLink()` in `registry/remote/utils.go` follows the `Link` response header from a registry without validating the URL's host or scheme. When a malicious registry returns a `Link` header containing an absolute URL pointing to an arbitrary host (e.g., a cloud metadata endpoint), the client makes GET requests to that host from the victim's network.\n\nThis affects all pagination-based listing operations: Tags, Referrers, and Repositories (catalog).\n\n## Root Cause\n\n`parseLink()` at `registry/remote/utils.go:54` calls `resp.Request.URL.Parse(link)` which, for absolute URLs, returns the absolute URL unchanged. The result is passed directly to the next pagination loop iteration where `http.NewRequestWithContext()` creates a GET request to the attacker-specified URL. No host comparison, scheme validation, or IP filtering exists between `parseLink` output and the HTTP request.\n\n## Affected Code Paths\n\n- `registry/remote/repository.go:Tags()` calls `parseLink()` for next page URL\n- `registry/remote/repository.go:Referrers()` calls `parseLink()` for next page URL\n- `registry/remote/registry.go:Repositories()` calls `parseLink()` for next page URL\n\n## Impact\n\n**Blind SSRF from the victim's network.** A malicious registry operator can force any oras-go client that lists tags, referrers, or repositories to issue GET requests to arbitrary internal endpoints:\n\n- Cloud instance metadata endpoints for service discovery and IAM role enumeration\n- Internal HTTP services for port scanning and triggering side effects\n- If the victim's credential store maps credentials for the SSRF target host, those credentials are attached to the request (auth.Client looks up creds by request host)\n\nThe attacker cannot read the response body (it's parsed as JSON and fails), making this a blind SSRF. However, timing and error differences can confirm internal service existence.\n\n## Attack Chain\n\n1. Victim calls `repo.Tags()` / `repo.Referrers()` / `registry.Repositories()` against attacker-controlled registry\n2. Registry returns a valid first page + malicious Link header pointing to an internal endpoint\n3. `parseLink()` extracts the absolute URL with zero validation\n4. Pagination loop makes GET request to the internal endpoint from victim's network\n\n## PoC\n\n<details>\n<summary>Expand PoC</summary>\n\n```go\n// Malicious registry handler for /v2/repo/tags/list:\nfunc handler(w http.ResponseWriter, r *http.Request) {\n    // Link header points to cloud metadata or internal service\n    w.Header().Set(\"Link\", `<http://internal-service:8080/admin>; rel=\"next\"`)\n    w.Header().Set(\"Content-Type\", \"application/json\")\n    json.NewEncoder(w).Encode(map[string][]string{\"tags\": {\"v1\"}})\n}\n\n// Victim code:\nrepo, _ := remote.NewRepository(\"attacker-registry.io/repo\")\nrepo.Tags(ctx, \"\", func(tags []string) error { return nil })\n// Result: GET http://internal-service:8080/admin is made from victim's network\n```\n\n</details>\n\n## Suggested Fix\n\nValidate that the URL returned by `parseLink()` has the same host and scheme as the original request before using it for the next pagination request. Reject cross-host or scheme-downgrade URLs.\n\nReported by **zx (Jace)**","state":0,"publishedAt":"2026-09-17T17:16:02+00:00","modifiedAt":"2026-10-01T20:55:52.2756406+00:00","affected":[{"ecosystem":"Go","name":"oras.land/oras-go/v2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"2.6.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/oras-project/oras-go/security/advisories/GHSA-h7vf-4x9w-h99v","https://nvd.nist.gov/vuln/detail/CVE-2026-85732","https://github.com/oras-project/oras-go/commit/31da1963f8c327dd089cd29faeae95cf0fc50842","https://github.com/oras-project/oras-go","https://github.com/oras-project/oras-go/releases/tag/v2.6.2"],"sourceUrl":"https://github.com/advisories/GHSA-h7vf-4x9w-h99v","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-h7vf-4x9w-h99v","identifiers":["GHSA-h7vf-4x9w-h99v","CVE-2026-85732","GO-2026-6497"]},"retained":false,"historicalAffected":[]},{"revision":"8bb47e1976ea434eb32032ab6dc4b1c0","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-6497","aliases":["CVE-2026-85732","GHSA-h7vf-4x9w-h99v"],"title":"Blind SSRF via unvalidated Link header URL in pagination allows internal network probing in oras.land/oras-go","description":"Blind SSRF via unvalidated Link header URL in pagination allows internal network probing in oras.land/oras-go","state":0,"publishedAt":"2026-10-01T20:23:47+00:00","modifiedAt":"2026-10-01T20:45:12.2198729+00:00","affected":[{"ecosystem":"Go","name":"oras.land/oras-go/v2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"2.6.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/oras-project/oras-go/security/advisories/GHSA-h7vf-4x9w-h99v","https://github.com/oras-project/oras-go/commit/31da1963f8c327dd089cd29faeae95cf0fc50842","https://github.com/oras-project/oras-go/releases/tag/v2.6.2"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6497","license":"OSV · upstream source license applies","key":"osv:GO-2026-6497","identifiers":["GO-2026-6497","CVE-2026-85732","GHSA-h7vf-4x9w-h99v"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T21:58:49.5594544+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T21:58:49.5594544+00:00","lastSuccessAt":"2026-11-11T21:58:49.7696899+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.7696907+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-0cd050aa4e3407be88a99da87c4684cdd6e2bb2192e7b5d8516c5221fe2996c0","complete":true,"records":424321,"lastAttemptAt":"2026-11-11T21:56:53.6118096+00:00","lastSuccessAt":"2026-11-11T21:56:53.4062549+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:56:53.6118096+00:00","snapshotPublishedAt":"2026-11-11T21:25:28+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-0211f24f7dd2479496f11922c7aad014","complete":false,"records":13760,"lastAttemptAt":"2026-11-11T22:09:10.3527395+00:00","lastSuccessAt":"2026-11-11T22:09:09.323+00:00","error":"346 identifier lookups failed; latest failures include AccessDenied (HTTP 403). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-11T22:09:09.323+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13257,"expectedIdentifiers":13813,"failedIdentifiers":346},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T21:58:49.5594544+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T21:58:49.5594544+00:00","lastSuccessAt":"2026-11-11T21:58:49.7704457+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.7704461+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-e103bc43c8e54398a828cba9bdd81bf5","complete":true,"records":13754,"lastAttemptAt":"2026-11-11T21:59:28.9840194+00:00","lastSuccessAt":"2026-11-11T21:59:28.981+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:59:28.981+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T21:58:49.3669281+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.3669281+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T21:56:53.7926299+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:56:53.7926299+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-11T21:58:49.4873797+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.4873797+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-685fe7fb2b690656c910a1ea42a9d294e8353311ac8ecfa691a9b0ff1b328804","complete":true,"records":231695,"lastAttemptAt":"2026-11-11T21:58:49.2338613+00:00","lastSuccessAt":"2026-11-11T21:58:47.7265713+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.2338613+00:00","snapshotPublishedAt":"2026-11-11T21:48:35+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}