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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… (CVE-2026-59843)CVE-2026-59843 0 A vulnerability in libssh allows a remote authenticated peer to advertise a zero maximum packet size in SSH_MSG_CHANNEL_OPEN. This causes subsequent channel writes to loop indefinitely, consuming CPU resources and resulting in a denial of service condition. The issue affects Red Hat Hardened Images RPMs and has been addressed in libssh version 0.12.1-4.hum1. No known exploits are reported in the wild. Join the discussion | GCVE Database | 07/21/2026, 12:33:36 UTC Added: 07/22/2026, 23:23:18 UTC |
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