CVE-2026-18374 Affecting nss_db package, versions <0:2.28-251.el8_10.48


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-ROCKY8-NSSDB-20950951
  • published15 Oct 2026
  • disclosed27 Aug 2026

Introduced: 27 Aug 2026

CVE-2026-18374  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 nss_db to version 0:2.28-251.el8_10.48 or higher.
This issue was patched in RLSA-2026:80798.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss_db package and not the nss_db package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

Passing an effectively empty string to the ,ccs= syntax extension of the mode argument in the fopen function in the GNU C Library version 2.45 or earlier may result in a heap buffer overflow when the mode string input to the function is attacker controlled.

This usage pattern is not seen in applications in common GNU/Linux distributions and applications that process user-supplied values for ccs should not pass them through without validation.

CVSS Base Scores

version 3.1