PYSEC-2026-1431

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/guardrails-ai/PYSEC-2026-1431.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-1431
Aliases
Published
2026-07-07T14:34:37.267375Z
Modified
2026-07-07T17:47:38.864707437Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Guardrails AI vulnerable to Improper Restriction of XML External Entity Reference
Details

RAIL documents are an XML-based format invented by Guardrails AI to enforce formatting checks on LLM outputs. Guardrails users that consume RAIL documents from external sources are vulnerable to XXE, which may cause leakage of internal file data via the SYSTEM entity.

References

Affected packages

PyPI / guardrails-ai

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.0

Affected versions

0.*
0.1.0rc1
0.1.0rc2
0.1.0rc3
0.1.0
0.1.1
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.1.7
0.1.8
0.1.9
0.2.0a1
0.2.0a2
0.2.0a3
0.2.0a4
0.2.0a5
0.2.0a6
0.2.0
0.2.1a0
0.2.1
0.2.2
0.2.3a1
0.2.3
0.2.4a1
0.2.4
0.2.5
0.2.6
0.2.7
0.2.8
0.2.9
0.3.0
0.3.1
0.3.2
0.3.3
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.4.5
0.5.0a0
0.5.0a1
0.5.0a2
0.5.0a3
0.5.0a4
0.5.0a5
0.5.0a6
0.5.0a7
0.5.0a8
0.5.0a9
0.5.0a10
0.5.0a11
0.5.0a12
0.5.0a13

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/guardrails-ai/PYSEC-2026-1431.yaml"