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BoardVulnerabilities › CVE-2026-59843
6.5Medium CVE-2026-59843 Libssh

A flaw was found in libssh.

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.

What happened

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.

Does it affect you

Not enough information

No products recorded, so this cannot be matched against anything.

What to do

  • Follow the vendor advisory for the fixed release and any interim mitigation.
    access.redhat.com
  • Follow the vendor advisory for the fixed release and any interim mitigation.
    access.redhat.com
  • Follow the vendor advisory for the fixed release and any interim mitigation.
    bugzilla.redhat.com

Vendor's affected list

rhel
Exactly 8.0

Sources

A verdict here is derived from what you told us and what the vendor published. It is not an assessment of your environment. Why we never say you are safe.