Cross-site Scripting (XSS) Affecting butane package, versions <0:0.12.1-1.rhaos4.8.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
11.31% (96th percentile)

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  • Snyk IDSNYK-RHEL8-BUTANE-18679158
  • published12 Aug 2026
  • disclosed11 May 2021

Introduced: 11 May 2021

CVE-2021-21648  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade RHEL:8 butane to version 0:0.12.1-1.rhaos4.8.el8 or higher.
This issue was patched in RHSA-2021:2437.

NVD Description

Note: Versions mentioned in the description apply only to the upstream butane package and not the butane package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Jenkins Credentials Plugin 2.3.18 and earlier does not escape user-controlled information on a view it provides, resulting in a reflected cross-site scripting (XSS) vulnerability.

CVSS Base Scores

version 3.1