{"id":"EUVD-2026-5373","revision":null,"records":[{"revision":"607f916901c24828b7e50df46dfa6cc1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-24843","aliases":[],"title":"melange QEMU runner could write files outside workspace directory","description":"melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The retrieveWorkspace function extracts tar entries without validating that paths stay within the workspace, allowing path traversal via ../ sequences. This issue has been patched in version 0.40.3.","state":0,"publishedAt":"2026-02-04T19:31:35.608+00:00","modifiedAt":"2026-02-05T14:33:15.392+00:00","affected":[{"ecosystem":"Vendor product","name":"melange","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"chainguard-dev\",\n                    \"product\": \"melange\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 0.11.3, < 0.40.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H","score":8.2,"severity":"HIGH"}],"references":["https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4","https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-24843","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-24843","identifiers":["CVE-2026-24843"]},"retained":false,"historicalAffected":[]},{"revision":"34479f2f4e8e45fab9b85a4392d47760","observedAt":"2026-11-15T12:10:31.589+00:00","statement":{"source":"euvd","id":"EUVD-2026-5373","aliases":["CVE-2026-24843"],"title":"melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the …","description":"melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The retrieveWorkspace function extracts tar entries without validating that paths stay within the workspace, allowing path traversal via ../ sequences. This issue has been patched in version 0.40.3.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H","score":8.2,"severity":null}],"references":["https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4","https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-5373","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Feb 4, 2026, 7:31:35 PM","dateUpdated":"Feb 5, 2026, 2:33:15 PM"},"relatedAdvisories":[],"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-2026-5373","identifiers":["EUVD-2026-5373","CVE-2026-24843"]},"retained":false,"historicalAffected":[]},{"revision":"0c905a7a838d477cb003d7b8d2b37fe0","observedAt":"2026-10-25T06:17:10.452+00:00","statement":{"source":"nvd","id":"CVE-2026-24843","aliases":[],"title":"melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the …","description":"melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The retrieveWorkspace function extracts tar entries without validating that paths stay within the workspace, allowing path traversal via ../ sequences. This issue has been patched in version 0.40.3.","state":0,"publishedAt":"2026-02-04T20:16:05.393+00:00","modifiedAt":"2026-06-17T10:23:41.39+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H","score":8.2,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H","score":8.4,"severity":"HIGH"}],"references":["https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b","https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-24843","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-22"],"productCriteria":["cpe:2.3:a:chainguard:melange:*:*:*:*:*:go:*:*"],"sourceDates":{"published":"2026-02-04T20:16:05.393","lastModified":"2026-06-17T10:23:41.390"},"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-2026-24843","identifiers":["CVE-2026-24843"]},"retained":false,"historicalAffected":[]},{"revision":"e82bc7be80964957ab20ac8a9e8c9920","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-qxx2-7h4c-83f4","aliases":["CVE-2026-24843","GO-2026-4407"],"title":"melange QEMU runner could write files outside workspace directory","description":"An attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The `retrieveWorkspace` function extracts tar entries without validating that paths stay within the workspace, allowing Path Traversal via `../` sequences.\n\n**Fix:** Fixed in [6e243d0d](https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b). Merged in release.\n\n**Acknowledgements**\n\nmelange thanks Oleh Konko from [1seal](https://1seal.org/) for discovering and reporting this issue.","state":0,"publishedAt":"2026-02-03T23:47:29+00:00","modifiedAt":"2026-09-10T03:50:59.6958456+00:00","affected":[{"ecosystem":"Go","name":"chainguard.dev/melange","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.11.3"},{"kind":"fixed","version":"0.40.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4","https://nvd.nist.gov/vuln/detail/CVE-2026-24843","https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b","https://github.com/chainguard-dev/melange"],"sourceUrl":"https://github.com/advisories/GHSA-qxx2-7h4c-83f4","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-qxx2-7h4c-83f4","identifiers":["GHSA-qxx2-7h4c-83f4","CVE-2026-24843","GO-2026-4407"]},"retained":false,"historicalAffected":[]},{"revision":"b61195c5eaae432582d66937262bc0d9","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-4407","aliases":["CVE-2026-24843","GHSA-qxx2-7h4c-83f4"],"title":"melange QEMU runner could write files outside workspace directory in chainguard.dev/melange","description":"melange QEMU runner could write files outside workspace directory in chainguard.dev/melange","state":0,"publishedAt":"2026-02-05T03:20:45+00:00","modifiedAt":"2026-02-05T16:28:56.824919+00:00","affected":[{"ecosystem":"Go","name":"chainguard.dev/melange","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.11.3"},{"kind":"fixed","version":"0.40.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4","https://nvd.nist.gov/vuln/detail/CVE-2026-24843","https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-4407","license":"OSV · upstream source license applies","key":"osv:GO-2026-4407","identifiers":["GO-2026-4407","CVE-2026-24843","GHSA-qxx2-7h4c-83f4"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-15T14:45:34.5753951+00:00","complete":true,"records":1781,"lastAttemptAt":"2026-11-15T14:45:34.5753951+00:00","lastSuccessAt":"2026-11-15T14:45:34.8574978+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.8574998+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-7de4d7559a5263003f03d9f70577ab06f92ba4178309f26fce53e22a4a959294-dbc2a32b8ba58f086cd55c8e6641a2329d359d06d53c8affd618a394074e5b45","complete":true,"records":425802,"lastAttemptAt":"2026-11-15T14:45:34.1277661+00:00","lastSuccessAt":"2026-11-15T14:45:34.107801+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.1277661+00:00","snapshotPublishedAt":"2026-11-15T14:23:20+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-a1e9404e161045f8a66efed8052b3191","complete":false,"records":13821,"lastAttemptAt":"2026-11-15T14:51:25.6439815+00:00","lastSuccessAt":"2026-11-15T14:51:25.638+00:00","error":"10 identifier lookups failed; latest failures include AccessDenied (HTTP 403). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-15T14:51:25.638+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13864,"expectedIdentifiers":13874,"failedIdentifiers":10},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-15T14:45:34.5753951+00:00","complete":true,"records":1125,"lastAttemptAt":"2026-11-15T14:45:34.5753951+00:00","lastSuccessAt":"2026-11-15T14:45:37.4881046+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:37.4881058+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-c167466b61b34733b7aedb2becc5e769","complete":true,"records":13833,"lastAttemptAt":"2026-11-15T14:45:39.1345919+00:00","lastSuccessAt":"2026-11-15T14:01:07.902+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:01:07.902+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13874,"expectedIdentifiers":13874,"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-64eea06dbd27de8464d5dbce1b78cc794cc59e2d901516ae0d3ea76e624cdae0","complete":true,"records":9955,"lastAttemptAt":"2026-11-15T14:45:34.4946418+00:00","lastSuccessAt":"2026-11-14T13:57:23.1208135+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.4946418+00:00","snapshotPublishedAt":"2026-11-14T13:17:57+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-f4424d7d4861b1af1404bd15abcb83f295dcd003412a9340ca99dc8200aa148a","complete":true,"records":2014,"lastAttemptAt":"2026-11-15T14:45:34.2700713+00:00","lastSuccessAt":"2026-11-13T19:57:08.2864435+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.2700713+00:00","snapshotPublishedAt":"2026-11-13T19:33:10+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-6086d649bcb454cdf302d7d9275177bda73550e1b6e446b3520e9b6266d3582c","complete":true,"records":3148,"lastAttemptAt":"2026-11-15T14:45:34.5080319+00:00","lastSuccessAt":"2026-11-15T11:05:17.1034234+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.5080319+00:00","snapshotPublishedAt":"2026-11-15T10:03:04+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-ff18f36f13fcca3a20a3fb9274b59b8872d18869a99071730e1e79b625c8f612","complete":true,"records":232475,"lastAttemptAt":"2026-11-15T14:45:34.3867952+00:00","lastSuccessAt":"2026-11-15T11:05:10.4195883+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.3867952+00:00","snapshotPublishedAt":"2026-11-15T10:33:06+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}