CVE-2025-68121

medium Red Hat
CVSS v3 Base Score
7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score
0.0%
Exploitation probability in 30 days
Top 99% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
None
Published: February 5, 2026 (98 days ago)
Last Modified: February 5, 2026
Vendor: Red Hat
Fix Available: ✓ Yes

Description

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.

Affected Products

Assisted Installer for Red Hat OpenShift Container Platform 2Builds for Red Hat OpenShiftcert-manager Operator for Red Hat OpenShiftCompliance OperatorConfidential Compute AttestationCustom Metric Autoscaler operator for Red Hat OpenshiftDeployment Validation OperatorExternalDNS OperatorExternal Secrets Operator for Red Hat OpenShiftFence Agents Remediation Operator

Fix Status

✅ Fix Available

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 go.dev 🔗 go.dev