CVE-2025-68121 (GCVE-0-2025-68121)
Vulnerability from cvelistv5
Published
2026-02-05 17:48
Modified
2026-02-20 16:05
Severity ?
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
Summary
During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake.
References
Impacted products
Vendor Product Version
Go standard library crypto/tls Version: 0   ≤
Version: 1.25.0-0   ≤
Version: 1.26.0-rc.1   ≤
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