GHSA-4846-7xwg-pw5mMediumCVSS 6.5
A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size...
🔗 CVE IDs covered (1)
📋 Description
A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSH_MSG_CHANNEL_OPEN, causing later channel writes to loop indefinitely and consume CPU, leading to denial of service.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-59843
- https://access.redhat.com/security/cve/CVE-2026-59843
- https://bugzilla.redhat.com/show_bug.cgi?id=2498176
- https://access.redhat.com/errata/RHSA-2026:42922
- https://access.redhat.com/errata/RHSA-2026:55855
- https://access.redhat.com/errata/RHSA-2026:62217
- https://access.redhat.com/errata/RHSA-2026:62218
- https://github.com/advisories/GHSA-4846-7xwg-pw5m