{"id":"EUVD-2026-112267","enisaUuid":"9d0408ba-6947-3c08-8b0c-b5fdc686edec","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\u0027s 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.","datePublished":"Oct 28, 2026, 5:06:57 PM","dateUpdated":"Oct 28, 2026, 5:06:57 PM","baseScore":8.3,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/Eugeny/russh/security/advisories/GHSA-vp5q-ff62-jwqv\nhttps://github.com/Eugeny/russh/commit/3e04597dc54e36bfc85c21996f7d8d9d224e9826\nhttps://github.com/Eugeny/russh/commit/62db6e7defd6d244159da962ccccb029e785ce0f\nhttps://github.com/Eugeny/russh/releases/tag/v0.65.0\n","aliases":"CVE-2026-116794\n","assigner":"GitHub_M","epss":0.16,"enisaIdProduct":[{"id":"b7f4d584-a83a-3f16-afb4-bc2a3f5fa5d5","product":{"name":"russh","vendor":{"name":"Eugeny"}},"product_version":"\u003c 0.65"}],"enisaIdVendor":[{"id":"43b311b9-96e8-3fb7-9d06-5b434afee791","vendor":{"name":"Eugeny"}}],"enisaIdVulnerability":[{"id":"727d16cb-3fca-3648-b333-1a4ae451321b","vulnerability":{"id":"CVE-2026-116794","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\u0027s 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.","datePublished":"Oct 28, 2026, 5:06:57 PM","dateUpdated":"Oct 28, 2026, 5:06:57 PM","status":"PUBLISHED","baseScore":8.3,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/Eugeny/russh/security/advisories/GHSA-vp5q-ff62-jwqv\nhttps://github.com/Eugeny/russh/commit/3e04597dc54e36bfc85c21996f7d8d9d224e9826\nhttps://github.com/Eugeny/russh/commit/62db6e7defd6d244159da962ccccb029e785ce0f\nhttps://github.com/Eugeny/russh/releases/tag/v0.65.0\n","enisa_id":"EUVD-2026-112267\n","assigner":"GitHub_M","epss":0.16,"dataProcessed":"Oct 30, 2026, 11:01:50 PM","vulnerabilityProduct":[{"id":"b94136a6-e6ab-31bb-ac18-306c77244e09","product":{"name":"russh","vendor":{"name":"Eugeny"}},"product_version":"\u003c 0.65"}],"vulnerabilityVendor":[{"id":"928acc4d-84c1-3c58-acbf-caee295ab4af","vendor":{"name":"Eugeny"}}]}}],"enisaIdAdvisory":[]}