{"id":"CVE-2026-35469","revision":null,"records":[{"revision":"01073906eb1c4ea3be61a27130a34620","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-35469","aliases":[],"title":"SpdyStream: DOS on CRI","description":"spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser does not validate attacker-controlled counts and lengths before allocating memory. Three allocation paths are affected: the SETTINGS frame entry count, the header count in parseHeaderValueBlock, and individual header field sizes — all read as 32-bit integers and used directly as allocation sizes with no bounds checking. Because SPDY header blocks are zlib-compressed, a small on-the-wire payload can decompress into large attacker-controlled values. A remote peer that can send SPDY frames to a service using spdystream can exhaust process memory and cause an out-of-memory crash with a single crafted control frame. This issue has been fixed in version 0.5.1.","state":0,"publishedAt":"2026-04-16T21:19:23.516+00:00","modifiedAt":"2026-09-11T12:09:03.706+00:00","affected":[{"ecosystem":"Vendor product","name":"spdystream","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"moby\",\n                    \"product\": \"spdystream\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.5.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"}],"references":["https://github.com/moby/spdystream/security/advisories/GHSA-pc3f-x583-g7j2","https://github.com/moby/spdystream/releases/tag/v0.5.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-35469","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-35469","identifiers":["CVE-2026-35469"]},"retained":false,"historicalAffected":[]},{"revision":"3d7503a81ffa4bbb92c43a4f71c7a363","observedAt":"2026-11-01T06:10:46.477+00:00","statement":{"source":"euvd","id":"EUVD-2026-23298","aliases":["CVE-2026-35469"],"title":"spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser does not validate attacker-controlled counts and lengths before allocating memory. Three allocation paths are af…","description":"spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser does not validate attacker-controlled counts and lengths before allocating memory. Three allocation paths are affected: the SETTINGS frame entry count, the header count in parseHeaderValueBlock, and individual header field sizes — all read as 32-bit integers and used directly as allocation sizes with no bounds checking. Because SPDY header blocks are zlib-compressed, a small on-the-wire payload can decompress into large attacker-controlled values. A remote peer that can send SPDY frames to a service using spdystream can exhaust process memory and cause an out-of-memory crash with a single crafted control frame. This issue has been fixed in version 0.5.1.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":null}],"references":["https://github.com/moby/spdystream/security/advisories/GHSA-pc3f-x583-g7j2","https://github.com/moby/spdystream/releases/tag/v0.5.1"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-23298","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Apr 16, 2026, 9:19:23 PM","dateUpdated":"Sep 11, 2026, 12:09:03 PM"},"relatedAdvisories":[{"id":"RHSA-2026:20042","title":"Red Hat Security Advisory: OpenShift Container Platform 4.19.32 security and extras 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kubernetes1.26","vulnerabilityIds":["CVE-2026-33814","CVE-2026-35469"]},{"id":"RHSA-2026:37581","title":"Red Hat Security Advisory: OpenShift Container Platform 4.19.38 security and extras update","vulnerabilityIds":["CVE-2026-35469"]},{"id":"SUSE-SU-2026:2345-1","title":"Security update for kubernetes1.25","vulnerabilityIds":["CVE-2026-33814","CVE-2026-35469"]},{"id":"RHSA-2026:19099","title":"Red Hat Security Advisory: Assisted Installer RHEL 9 components for Multicluster Engine for Kubernetes 2.10.3","vulnerabilityIds":["CVE-2026-32285","CVE-2026-33186","CVE-2026-34986","CVE-2026-35469"]}],"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-2026-23298","identifiers":["EUVD-2026-23298","CVE-2026-35469"]},"retained":false,"historicalAffected":[]},{"revision":"792aae188c494e50a63cb0292fcd9ef9","observedAt":"2026-10-27T09:03:12.132+00:00","statement":{"source":"nvd","id":"CVE-2026-35469","aliases":[],"title":"spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser does not validate attacker-controlled counts and lengths before allocating memory. Three allocation paths are af…","description":"spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser does not validate attacker-controlled counts and lengths before allocating memory. Three allocation paths are affected: the SETTINGS frame entry count, the header count in parseHeaderValueBlock, and individual header field sizes — all read as 32-bit integers and used directly as allocation sizes with no bounds checking. Because SPDY header blocks are zlib-compressed, a small on-the-wire payload can decompress into large attacker-controlled values. A remote peer that can send SPDY frames to a service using spdystream can exhaust process memory and cause an out-of-memory crash with a single crafted control frame. This issue has been fixed in version 0.5.1.","state":0,"publishedAt":"2026-04-16T22:16:37.92+00:00","modifiedAt":"2026-10-26T22:10:00.163+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · 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Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-35469","identifiers":["CVE-2026-35469"]},"retained":false,"historicalAffected":[]},{"revision":"e686230484394b3a9e664c052cb009ef","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-pc3f-x583-g7j2","aliases":["CVE-2026-35469","GO-2026-4958"],"title":"SpdyStream: DOS on CRI","description":"The SPDY/3 frame parser in spdystream does not validate\nattacker-controlled counts and lengths before allocating memory. A\nremote peer that can send SPDY frames to a service using spdystream can\ncause the process to allocate gigabytes of memory with a small number of\nmalformed control frames, leading to an out-of-memory crash.\n\u00A0\nThree allocation paths in the receive side are affected:\n1. **SETTINGS entry count** -- The SETTINGS frame reader reads a 32-bit\n`numSettings` from the payload and allocates a slice of that size\nwithout checking it against the declared frame length. An attacker\ncan set `numSettings` to a value far exceeding the actual payload,\ntriggering a large allocation before any setting data is read.\n\u00A0\n2. **Header count** -- `parseHeaderValueBlock` reads a 32-bit\n`numHeaders` from the decompressed header block and allocates an\n`http.Header` map of that size with no upper bound.\n\u00A0\n3. **Header field size** -- Individual header name and value lengths are\nread as 32-bit integers and used directly as allocation sizes with\nno validation.\n\u00A0\nBecause SPDY header blocks are zlib-compressed, a small on-the-wire\npayload can decompress into attacker-controlled bytes that the parser\ninterprets as 32-bit counts and lengths. A single crafted frame is\nenough to exhaust process memory.\n## Impact\n\u00A0Any program that accepts SPDY connections using spdystream -- directly\nor through a dependent library -- is affected. A remote peer that can\nsend SPDY frames to the service can crash the process with a single\ncrafted SPDY control frame, causing denial of service.\n## Affected versions\n\u00A0`github.com/moby/spdystream` <= v0.5.0\n## Fix\n\u00A0v0.5.1 addresses the receive-side allocation bugs and adds related\nhardening:\n\u00A0\n**Core fixes:**\n\u00A0\n- **SETTINGS entry-count validation** -- The SETTINGS frame reader now\nchecks that `numSettings` is consistent with the declared frame\nlength (`numSettings <= (length-4)/8`) before allocating.\n\u00A0\n- **Header count limit** -- `parseHeaderValueBlock` enforces a maximum\nnumber of headers per frame (default: 1000).\n\u00A0\n- **Header field size limit** -- Individual header name and value\nlengths are checked against a per-field size limit (default: 1 MiB)\nbefore allocation.\n\u00A0\n- **Connection closure on protocol error** -- The connection read loop\nnow closes the underlying `net.Conn` when it encounters an\n`InvalidControlFrame` error, preventing further exploitation on the\nsame connection.\n\u00A0\n**Additional hardening:**\n\u00A0\n- **Write-side bounds checks** -- All frame write methods now verify\nthat payloads fit within the 24-bit length field, preventing the\nlibrary from producing invalid frames.\n\u00A0\n**Configurable limits:**\n\u00A0\n- Callers can adjust the defaults using `NewConnectionWithOptions` or\nthe lower-level `spdy.NewFramerWithOptions` with functional options:\n`WithMaxControlFramePayloadSize`, `WithMaxHeaderFieldSize`, and\n`WithMaxHeaderCount`.\n\u00A0","state":0,"publishedAt":"2026-04-16T20:44:01+00:00","modifiedAt":"2026-09-10T03:51:02.5231095+00:00","affected":[{"ecosystem":"Go","name":"github.com/moby/spdystream","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.5.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/moby/spdystream/security/advisories/GHSA-pc3f-x583-g7j2","https://nvd.nist.gov/vuln/detail/CVE-2026-35469","https://github.com/moby/spdystream/commit/ef6121f62c730110bf5ae604a865a8613bfb787f","https://github.com/moby/spdystream","https://github.com/moby/spdystream/releases/tag/v0.5.1"],"sourceUrl":"https://github.com/advisories/GHSA-pc3f-x583-g7j2","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-pc3f-x583-g7j2","identifiers":["GHSA-pc3f-x583-g7j2","CVE-2026-35469","GO-2026-4958"]},"retained":false,"historicalAffected":[]},{"revision":"90e650746bee4eecb2dab1aeedbcd64b","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-4958","aliases":["CVE-2026-35469","GHSA-pc3f-x583-g7j2"],"title":"Uncontrolled resource consumption when parsing SPDY frames in github.com/moby/spdystream","description":"The SPDY/3 frame parser in spdystream does not validate attacker-controlled counts and lengths before allocating memory. 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