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.
CVE-2024-6961
This medium-severity CVE scores 5.9 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 77% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.9
- EG Score
- 5.9(medium)
- EPSS
- 32.8%
- KEV
- Not listed
Published
July 21, 2024
Last Modified
April 15, 2026
References (2)
- reefs@jfroghttps://research.jfrog.com/vulnerabilities/guardrails-rail-xxe-jfsa-2024-001035519/
- af854a3a-2127-422b-91ae-364da2661108https://research.jfrog.com/vulnerabilities/guardrails-rail-xxe-jfsa-2024-001035519/
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| guardrails-ai | 0.1.0 ... 0.5.0a9 (56 versions) | 0.5.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:26 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2024-6961?
When was CVE-2024-6961 disclosed?
Is CVE-2024-6961 actively exploited?
What is the CVSS score of CVE-2024-6961?
How do I remediate CVE-2024-6961?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-6961
Is Your Infrastructure Affected by CVE-2024-6961?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.