Unchecked Input for Loop Condition Affecting libxslt package, versions [,1.1.37)


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept

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  • Snyk IDSNYK-CONAN-LIBXSLT-12484221
  • published4 Sept 2025
  • disclosed2 Sept 2025
  • creditNikita Sveshnikov

Introduced: 2 Sep 2025

NewCVE-2025-9714  (opens in a new tab)
CWE-606  (opens in a new tab)

How to fix?

Upgrade libxslt to version 1.1.37 or higher.

Overview

Affected versions of this package are vulnerable to Unchecked Input for Loop Condition via the exsltDynMapFunction function in libexslt/dynamic.c when handling specially crafted XSLT documents that trigger uncontrolled recursion. An attacker can cause stack exhaustion and disrupt service availability by submitting malicious input that exploits the lack of recursion depth checks.

Workaround

The impact of this vulnerability can be reduced by setting strict resource limits to the stack size of processes at the operational system level, using the ulimit shell built-in or the limits.conf file.

CVSS Base Scores

version 4.0
version 3.1