Description
In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints are only applied to the first key, even if a PKCS#11 token returns multiple keys.
Affected products
openbsd: openssh; debian: debian linux
References10
- github.com/openssh/openssh-portable/commit/881d9c6af9da4257c69c… PatchThird Party Advisory
- github.com/openssh/openssh-portable/commit/881d9c6af9da4257c69c… PatchThird Party Advisory
- seclists.org/fulldisclosure/2024/Mar/21 Mailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20240105-0005/ Third Party Advisory
- support.apple.com/kb/HT214084 Third Party Advisory
- www.debian.org/security/2023/dsa-5586 Third Party Advisory
- www.openssh.com/txt/release-9.6 Release Notes
- www.openwall.com/lists/oss-security/2023/12/18/2 Mailing ListRelease Notes
- seclists.org/fulldisclosure/2024/Mar/21 Mailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20240105-0005/ Third Party Advisory
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 0% percentile: 37 · as of 5 November 2026
- CWE
- CWE-284
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