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


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.41% (34th percentile)

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  • Snyk IDSNYK-RHEL7-JASTOW-17893190
  • published8 Jul 2026
  • disclosed7 Jul 2026

Introduced: 7 Jul 2026

CVE-2025-12799  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 jastow.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jastow package and not the jastow package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting (XSS) attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling.

CVSS Base Scores

version 3.1