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Applications using aws-lc-sys should upgrade to the most recent release of aws-lc-sys.\n\n#### Impacted versions: \naws-lc-sys versions: >= 0.24.0, < 0.38.0\n\n### Patches\nThe patch is included in v0.38.0\n\n### Workarounds\nThere is no workaround. Applications using aws-lc-sys should upgrade to the most recent release of aws-lc-sys.\n\n### Resources\nIf there are any questions or comments about this advisory, contact [AWS/Amazon] Security via the [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.\n\n### Acknowledgement\nAWS-LC would like to thank Joshua Rogers (https://joshua.hu/) for collaborating on this issue through the coordinated vulnerability disclosure process.","state":0,"publishedAt":"2026-03-03T20:08:24+00:00","modifiedAt":"2026-09-10T03:50:41.2736062+00:00","affected":[{"ecosystem":"crates.io","name":"aws-lc-sys","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.24.0"},{"kind":"fixed","version":"0.38.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":null,"severity":null},{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/aws/aws-lc-rs/security/advisories/GHSA-vw5v-4f2q-w9xf","https://github.com/aws/aws-lc/security/advisories/GHSA-cfwj-9wp5-wqvp","https://nvd.nist.gov/vuln/detail/CVE-2026-3336","https://aws.amazon.com/security/security-bulletins/2026-005-AWS","https://github.com/aws/aws-lc-rs","https://rustsec.org/advisories/RUSTSEC-2026-0046.html"],"sourceUrl":"https://github.com/advisories/GHSA-vw5v-4f2q-w9xf","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-vw5v-4f2q-w9xf","identifiers":["GHSA-vw5v-4f2q-w9xf","CVE-2026-3336","GHSA-cfwj-9wp5-wqvp","RUSTSEC-2026-0046"]},"retained":false,"historicalAffected":[]},{"revision":"1b111940dc1a415cbb74ad6e0b5443c8","observedAt":"2026-11-09T12:02:17.886+00:00","statement":{"source":"osv","id":"RUSTSEC-2026-0046","aliases":["CVE-2026-3336","GHSA-cfwj-9wp5-wqvp","GHSA-vw5v-4f2q-w9xf"],"title":"PKCS7_verify Certificate Chain Validation Bypass in AWS-LC","description":"Improper certificate validation in `PKCS7_verify()` in AWS-LC allows an\nunauthenticated user to bypass certificate chain verification when processing\nPKCS7 objects with multiple signers, except the final signer.\n\nCustomers of AWS services do not need to take action. `aws-lc-sys` contains\ncode from AWS-LC. 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