CVE-2026-73281: In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locall

Q: How do I fix CVE-2026-73281?

openssh: upgrade to 10.5. Exact commands for each OS are on this page.

Q: Is CVE-2026-73281 being exploited?

CVE-2026-73281 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-73281 affect?

CVE-2026-73281 affects openssh. Severity is low (CVSS 3.5). In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the session-bind@o

Q: How urgent is CVE-2026-73281?

Priority 18/100. On your watchlist

Routine

LOW 3.5WATCHLISTUPGRADE

CVE-2026-73281 is a low-severity flaw (CVSS 3.5) affecting openssh. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the session-bind@openssh.com extension.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-669
Published	2026-08-11
Last modified	2026-10-23

Publisher (CNA): MITRE · Vendor: openbsd

Am I affected?

Timeline

2026-08-11 20:18 UTCPublished CVE record published
2026-10-23 20:10 UTCUpdated Record last modified

openbsd openssh UPGRADE

Affected: < 10.5

Fixed in: 10.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy openssh || rpm -q openssh || openssh --version

2. UPGRADE to 10.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade openssh

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade openssh

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-73281?

openssh: upgrade to 10.5. Exact commands for each OS are on this page.

Is CVE-2026-73281 being exploited?

CVE-2026-73281 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-73281 affect?

CVE-2026-73281 affects openssh. Severity is low (CVSS 3.5). In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the session-bind@o

How urgent is CVE-2026-73281?

Priority 18/100. On your watchlist

Related CVEs

CVE-2026-73282 MEDIUM 4.8 UPGRADE In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forward
CVE-2026-73283 LOW 2.5 UPGRADE In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tun

References

← Back to latest CVEs