LibreChat RAG API, version 0.7.0, contains a log-injection vulnerability that allows attackers to forge log entries.

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-4276
StatePUBLISHED
Assignercertcc
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-16 16:16:18 UTC
Updated2026-06-05 19:59:52 UTC
DescriptionLibreChat RAG API, version 0.7.0, contains a log-injection vulnerability that allows attackers to forge log entries.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.001410000 probability, percentile 0.340770000 (date 2026-06-11)

Problem Types: CWE-94 | CWE-20 Improper Input Validation | CWE-117 Improper Output Neutralization for Logs

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Librechat Librechat 0.7.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA LibreChat RAG API affected 0.7.0 Not specified

References

ReferenceSourceLinkTags
kb.cert.org/vuls/id/624941 [email protected] kb.cert.org Third Party Advisory, VDB Entry
www.kb.cert.org/vuls/id/624941 af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org Third Party Advisory, VDB Entry
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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