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CVE-2013-2172

Inefficient Algorithmic Complexity in Apache Santuario XML Security

Also known asGHSA-r237-w2w6-jq3p
Published
Aug 20, 2013
Updated
Apr 16, 2026
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
5.9%probability of exploitation in next 30 days
Lower Risk92th percentile+2.29%
2.79%4.31%5.83%7.35%5.4%5.9%Dec 25Apr 26Jun 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

2 pkgs affected
org.apache.santuario:xmlsecorg.apache.santuario:xmlsec

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

jcp/xml/dsig/internal/dom/DOMCanonicalizationMethod.java in Apache Santuario XML Security for Java 1.4.x before 1.4.8 and 1.5.x before 1.5.5 allows context-dependent attackers to spoof an XML Signature by using the CanonicalizationMethod parameter to specify an arbitrary weak "canonicalization algorithm to apply to the SignedInfo part of the Signature."

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.apache.santuario:xmlsec1.4.0&&< 1.4.81.4.8
Mavenorg.apache.santuario:xmlsec1.5.0&&< 1.5.51.5.5

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.santuario:xmlsec. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update org.apache.santuario:xmlsec to 1.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-2172 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether CVE-2013-2172 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2013-2172. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

jcp/xml/dsig/internal/dom/DOMCanonicalizationMethod.java in Apache Santuario XML Security for Java 1.4.x before 1.4.8 and 1.5.x before 1.5.5 allows context-dependent attackers to spoof an XML Signature by using the CanonicalizationMethod parameter to specify an arbitrary weak "canonicalization algorithm to apply to the SignedInfo part of the Signature."
O3 Security · Impact-Aware SCA

Is CVE-2013-2172 in your dependencies?

O3 detects CVE-2013-2172 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

CVE-2013-2172: xmlsec | O3 Security