High

Apache Xalan Java XSLT library integer truncation issue when processing malicious XSLT stylesheets

  • Disclosed: 20.07.2022
  • Updated: 11.10.2026 12:22

The Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets. This can be used to corrupt Java class files generated by the internal XSLTC compiler and execute arbitrary Java bytecode.

A fix for this issue was published in September 2022 as part of an anticipated 2.7.3 release.

Affected software

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PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) xalan:xalan < 2.7.3 2.7.3

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE)
CWE-681
Platform
Java / Kotlin (Maven)
Package
xalan:xalan
Disclosed
20.07.2022
Updated
11.10.2026 12:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-9339-86wc-4qgf - CC BY 4.0

Vulnerability history: xalan:xalan

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
2
First → latest
05.2022 07.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 2

Disclosures per year

  1. 2022: 2
  2. 2023: 0
  3. 2024: 0
  4. 2025: 0
  5. 2026: 0
  1. Apache Xalan Java XSLT library integer truncation issue when processing malicious XSLT stylesheets this entry
    High · 7.5 CVE-2022-34169 < 2.7.3 2.7.3
  2. High CVE-2014-0107 < 2.7.2 2.7.2

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