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Test your applicationsUpgrade RHEL:9 golang-docs to version 0:1.25.9-1.el9_7 or higher.
This issue was patched in RHSA-2026:10219.
Note: Versions mentioned in the description apply only to the upstream golang-docs package and not the golang-docs package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.