{"id":"CVE-2026-123610","published":"2026-11-08T02:16:56.267","lastModified":"2026-11-09T14:17:13.043","description":"rustls before 0.23.46 contains an uncontrolled memory allocation flaw in its optional Brotli certificate decompression, which limits decompressed output size but accepts an input-selected large history window. Malicious peers can send a certificate with a five-byte Brotli header requesting up to 1 GiB before authentication, aborting Brotli-enabled clients or client-authenticating servers whose allocator cannot satisfy the request.","cvssScore":3.7,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","cwes":["CWE-770"],"vendors":[],"products":[],"references":[{"url":"https://github.com/rustls/rustls/security/advisories/GHSA-h2v8-394m-p7vv","tags":[]},{"url":"https://www.vulncheck.com/advisories/rustls-before-0.23.46-denial-of-service-via-brotli-certificate-decompression","tags":[]}],"exploitRefs":[{"url":"https://github.com/rustls/rustls/security/advisories/GHSA-h2v8-394m-p7vv","tags":[]}],"hasPoc":true,"ai":null}