Information Exposure The advisory has been revoked - it doesn't affect any version of package rhcos (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-RHCOS-17795843
- published2 Jul 2026
- disclosed14 Jun 2026
Introduced: 14 Jun 2026
CVE-2026-54411 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rhcos package and not the rhcos package as distributed by RHEL.
Linux-PAM through 1.7.2 contains an observable timing discrepancy (CWE-208) in the pam_userdb module's plaintext-password comparison path in modules/pam_userdb/pam_userdb.c that allows a local or network-adjacent attacker able to repeatedly drive authentication through a calling service to recover the plaintext password of a target account by measuring response-timing differences.
References
- https://access.redhat.com/security/cve/CVE-2026-54411
- https://cwe.mitre.org/data/definitions/208.html
- https://github.com/linux-pam/linux-pam
- https://github.com/linux-pam/linux-pam/blob/master/libpam/include/pam_inline.h
- https://github.com/linux-pam/linux-pam/blob/master/modules/pam_userdb/pam_userdb.c#L327