{"id":"EUVD-2026-112267","revision":"1835e77b993546e388dc0d781049135f","records":[{"revision":"1835e77b993546e388dc0d781049135f","observedAt":"2026-10-30T23:48:11.79+00:00","statement":{"source":"euvd","id":"EUVD-2026-112267","aliases":["CVE-2026-116794"],"title":"russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.50.0-beta.12 until 0.65.0, the agent server's Connection::try_sign path in russh/src/keys/agent/server.rs recognizes SSH_AGENT_CONSTRAI…","description":"russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.50.0-beta.12 until 0.65.0, the agent server's Connection::try_sign path in russh/src/keys/agent/server.rs recognizes SSH_AGENT_CONSTRAIN_CONFIRM but returns a hard-coded successful result instead of calling Agent::confirm. In applications that override Agent::confirm to require user approval or another policy check, a process that can reach the agent socket, including the remote side of a forwarded agent, can use a key added through ssh-add -c without that check and can authenticate or sign data as the user while the key remains loaded. The separate Agent::confirm_request hook still runs for every signing request, so checks implemented there remain effective, and implementations that retain the default always-successful Agent::confirm do not lose an approval check through this regression. This issue is fixed in version 0.65.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N","score":8.3,"severity":null}],"references":["https://github.com/Eugeny/russh/security/advisories/GHSA-vp5q-ff62-jwqv","https://github.com/Eugeny/russh/commit/3e04597dc54e36bfc85c21996f7d8d9d224e9826","https://github.com/Eugeny/russh/commit/62db6e7defd6d244159da962ccccb029e785ce0f","https://github.com/Eugeny/russh/releases/tag/v0.65.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112267","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 28, 2026, 5:06:57 PM","dateUpdated":"Oct 28, 2026, 5:06:57 PM"},"relatedAdvisories":[],"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-2026-112267","identifiers":["EUVD-2026-112267","CVE-2026-116794"]},"retained":false,"historicalAffected":[]}],"coverage":[]}