Cross-site Scripting (XSS) Affecting buildah-tests package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-CENTOS9-BUILDAHTESTS-17547528
  • published26 Jun 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

CVE-2026-39823  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for Centos:9 buildah-tests.

NVD Description

Note: Versions mentioned in the description apply only to the upstream buildah-tests package and not the buildah-tests package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a <meta> tag's <content> attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the <content> attribute, the escaper would fail to similarly escape it, leading to XSS.

CVSS Base Scores

version 3.1