Chainguard: openstack-horizon-2025.2: security update to 25.5.2_git20260914-r12

medium Tenable Cloud Security Plugin ID 476879

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Pillow is a Python imaging library. Prior to 13.0.0, Pillow's XBM header parser is vulnerable to regular-
expression denial of service. In XbmImageFile._open, when an application calls Image.open() on a small
crafted XBM file, XbmImagePlugin applies a backtracking expression to the attacker-controlled header
before image dimensions are accepted, stalling a worker for minutes and denying service. This issue is
fixed in version 13.0.0. (CVE-2026-112901)

Solution

Update the openstack-horizon-2025.2 library and its related packages to version 25.5.2_git20260914-r12 or later.

Plugin Details

Severity: Medium

ID: 476879

Version: Revision 1.1

Type: Local

Published: 10/23/2026

Updated: 10/23/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-112901

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/19/2026

Reference Information

CVE: CVE-2026-112901