{"id":"CVE-2026-10740","aliases":["GHSA-9q54-f358-3fqf"],"url":"https://o3.security/vulnerability/CVE-2026-10740","summary":"Excessive memory allocation in s2n-quic","details":"Unbounded memory allocation in the CRYPTO frame reassembler in s2n-quic before 1.8.2 may allow an unauthenticated remote actor to cause a denial of service (degraded availability) by sending crafted QUIC Initial packets.\n\n\n\nTo remediate this issue, users should upgrade to v1.8.2.","published":"2026-06-10T18:09:36.070Z","modified":"2026-08-12T03:51:28.486053580Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"crates.io","name":"s2n-quic","fixedVersion":"1.82.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://aws.amazon.com/security/security-bulletins/2026-042-aws/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10740.json"},{"type":"ADVISORY","url":"https://github.com/aws/s2n-quic/security/advisories/GHSA-9q54-f358-3fqf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-10740"},{"type":"FIX","url":"https://github.com/aws/s2n-quic/releases/tag/v1.82.0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:28.486053580Z"}}