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RHEL 7 : pcre2 (RHSA-2026:95371)

high Nessus Plugin ID 376896

Synopsis

The remote Red Hat host is missing a security update for pcre2.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:95371 advisory.

 The pcre2 package contains a new generation of the Perl Compatible Regular Expression libraries for implementing regular expression pattern matching using the same syntax and semantics as Perl.

 Security Fix(es):

 * pcre2: pcre2: Out-of-bounds write via crafted regular expression (CVE-2026-103111)

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL pcre2 package based on the guidance in RHSA-2026:95371.

See Also

https://access.redhat.com/errata/RHSA-2026:95371

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2543797

http://www.nessus.org/u?e43758de

Plugin Details

Severity: High

ID: 376896

File Name: redhat-RHSA-2026-95371.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/6/2026

Updated: 11/6/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.43

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 8

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:C/A:P

CVSS Score Source: CVE-2026-103111

CVSS v3

Risk Factor: High

Base Score: 7.6

Temporal Score: 6.6

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:rhel_els:7, p-cpe:/a:redhat:enterprise_linux:pcre2-devel, p-cpe:/a:redhat:enterprise_linux:pcre2-static, p-cpe:/a:redhat:enterprise_linux:pcre2-tools, p-cpe:/a:redhat:enterprise_linux:pcre2-utf16, p-cpe:/a:redhat:enterprise_linux:pcre2-utf32, p-cpe:/a:redhat:enterprise_linux:pcre2

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/5/2026

Vulnerability Publication Date: 9/30/2026

Reference Information

CVE: CVE-2026-103111

CWE: 787

RHSA: 2026:95371