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Red Hat Security Advisory: RHTAS 1.3.4 - Red Hat Trusted Artifact Signer Release

0
High
Published: 04/23/2026 (04/23/2026, 12:15:28 UTC)
Source: GCVE Database
Vendor/Project: Red Hat Product Security
Product: Red Hat

Description

The RHTAS Operator can be used with OpenShift Container Platform 4.16, 4.17, 4.18, 4.19, 4.20 and 4.21

Affected software

Affected versions
>=4.16 <=4.21Red HatRed Hat Trusted Artifact SignerRed Hat Trusted Artifact Signer 1.3amd64registry.redhat.io/rhtas/client-server-rhel9@sha256:9607f5c16d8e9d7ee2491ac04db78a52eb13ee0e93eeef79ff8bb6c8f9430c72_amd64

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/17/2026, 17:23:52 UTC

Technical Analysis

CVE-2025-68121 is a vulnerability in the crypto/tls component affecting Red Hat Trusted Artifact Signer (RHTAS) Operator used with OpenShift Container Platform 4.16 to 4.21. The vulnerability arises when TLS session resumption occurs after runtime changes to certificate authority (CA) settings, causing incorrect certificate validation. This can allow an attacker to bypass certificate validation and establish a TLS connection that should have been rejected, resulting in an authentication bypass under specific conditions. The attack complexity is high, requiring a controlled setup, and the impact is limited to confidentiality and integrity within the TLS component without affecting availability. Red Hat classifies this as a moderate flaw with a CVSS score of 7.4 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N) reflecting the difficulty of exploitation and limited scope. The advisory does not mention an official fix or patch availability for this vulnerability. The affected products include Red Hat Trusted Artifact Signer versions 1.3.x used with OpenShift Container Platform versions 4.16 through 4.21.

Potential Impact

The vulnerability allows bypassing certificate validation during TLS session resumption when CA settings are modified at runtime, potentially enabling an attacker to establish unauthorized TLS connections that should have been rejected. This leads to an authentication bypass affecting confidentiality and integrity of the TLS session. The impact is confined to the crypto/tls component and does not affect system availability. Exploitation requires specific conditions and is not straightforward, limiting the overall risk.

Mitigation Recommendations

The vendor advisory does not explicitly state that a patch or official fix is available for this vulnerability. Patch status is not yet confirmed — check the Red Hat advisory (RHSA-2026:10125) and product documentation for current remediation guidance. Since exploitation requires specific conditions and complexity is high, monitor vendor updates for any forthcoming fixes. No additional mitigations are specified by Red Hat at this time.

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Technical Details

Gcve Source
db.gcve.eu
Csaf Category
csaf_security_advisory
Csaf Version
2.0
Publisher
Red Hat Product Security
Advisory Id
RHSA-2026:10125
Cve Count
8
Additional Cves
["CVE-2026-25679","CVE-2026-27137","CVE-2026-33186","CVE-2026-33211","CVE-2026-33747","CVE-2026-33748","CVE-2026-34986"]
State
PUBLISHED

Threat ID: 6a160956e29bf47b5061b553

Added to database: 05/26/2026, 20:57:58 UTC

Last enriched: 08/17/2026, 17:23:52 UTC

Last updated: 09/13/2026, 00:47:01 UTC

Views: 164

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