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RockyLinux 8 : bubblewrap (RLSA-2026:85306)

high Nessus Plugin ID 369344

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Synopsis

The remote RockyLinux host is missing a security update.

Description

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:85306 advisory.

 * bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup (CVE-2026-87766)

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 bubblewrap, bubblewrap-debuginfo and / or bubblewrap-debugsource packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=2530542

https://errata.rockylinux.org/RLSA-2026:85306

Plugin Details

Severity: High

ID: 369344

File Name: rocky_linux_RLSA-2026-85306.nasl

Version: 1.1

Type: Local

Published: 10/21/2026

Updated: 10/21/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.02

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-87766

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:bubblewrap-debuginfo, p-cpe:/a:rocky:linux:bubblewrap-debugsource, p-cpe:/a:rocky:linux:bubblewrap

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2026

Vulnerability Publication Date: 9/9/2026

Reference Information

CVE: CVE-2026-87766