Detections
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RockyLinux 10 : libcap (RLSA-2026:12423)

high Nessus Plugin ID 311807

Synopsis

The remote RockyLinux host is missing a security update.

Description

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:12423 advisory.

 * libcap: libcap: Privilege escalation via TOCTOU race condition in cap_set_file() (CVE-2026-4878)

Tenable has extracted the preceding description block directly from the RockyLinux 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 affected packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=2451615

https://errata.rockylinux.org/RLSA-2026:12423

Plugin Details

Severity: High

ID: 311807

File Name: rocky_linux_RLSA-2026-12423.nasl

Version: 1.1

Type: Local

Published: 5/3/2026

Updated: 5/3/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-4878

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.3

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

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:10, p-cpe:/a:rocky:linux:libcap-devel, p-cpe:/a:rocky:linux:libcap-debuginfo, p-cpe:/a:rocky:linux:libcap, p-cpe:/a:rocky:linux:libcap-debugsource

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/3/2026

Vulnerability Publication Date: 4/9/2026

Reference Information

CVE: CVE-2026-4878