Source: nghttp2 Version: 1.69.0-1 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for nghttp2. CVE-2026-58055[0]: | nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade | request that also carries a Content-Length header and body onto | reusable keep-alive backend connections, re-adding the Upgrade and | Connection headers while passing Content-Length verbatim. A backend | that resolves the resulting ambiguous message in the attacker's | favor enables HTTP request/response smuggling and cross-client | response-queue poisoning. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-58055 https://www.cve.org/CVERecord?id=CVE-2026-58055 [1] https://github.com/bikini/exploitarium/tree/main/nghttp2-nghttpx-upgrade-queue-poison-poc [2] https://github.com/nghttp2/nghttp2/commit/ab28105c4a0197da24f8bfc414bc116055249e1e Please adjust the affected versions in the BTS as needed. Regards, Salvatore
