Vulnerability · CVE-2026-4276
LibreChat RAG API, version 0.7.0, contains a log-injection vulnerability that allows attackers to forge log entries.
Published Mar 16, 2026 · catalog updated Jun 17, 2026 · LibreChat RAG API, version
Check if you run it
No confirmed exploitation is on record for CVE-2026-4276. EPSS is 0.51%. Act only if a listed version of LibreChat RAG API, version is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (LibreChat RAG API, version).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.51%
- Remediation
- Advisory link
- Affected products
- cpe librechat/librechat
LibreChat RAG API, version 0.7.0, contains a log-injection vulnerability that allows attackers to forge log entries.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe librechat/librechat0.7.0
How to fix CVE-2026-4276
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-4276. EPSS is 0.51%. Act only if a listed version of LibreChat RAG API, version is installed.
Which versions are affected?
Compare what you have installed with 0.7.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-94: Code Injection. EPSS 0.51%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Mar 16, 2026 · NIST NVD
Detected
LibreChat RAG API, version 0.7.0, contains a log-injection vulnerability that allows attackers to forge log entries.
Jun 17, 2026 · NIST NVD
Updated
LibreChat RAG API, version 0.7.0, contains a log-injection vulnerability that allows attackers to forge log entries.
Sources
- CVE.orgVulnerability recordCVE-2026-4276
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-4276
30-day exploitation probability 0.5%
first.org - NIST NVDVulnerability recordCVE-2026-4276
LibreChat RAG API, version 0.7.0, contains a log-injection vulnerability that allows attackers to forge log entries.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.