CVE-2026-33265
CVE-2026-33265 is a medium-severity vulnerability in Librechat with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-669.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-12813
- Weakness: CWE-669
- Affected product: Librechat
- Published:
- Last modified:
Description
In LibreChat 0.8.1-rc2, a logged-in user obtains a JWT for both the LibreChat API and the RAG API.
Frequently asked questions
- What is CVE-2026-33265?
- In LibreChat 0.8.1-rc2, a logged-in user obtains a JWT for both the LibreChat API and the RAG API.
- How severe is CVE-2026-33265?
- CVE-2026-33265 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-33265 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-33265?
- CVE-2026-33265 affects Librechat. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-33265?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-33265 have an EU (EUVD) identifier?
- Yes. CVE-2026-33265 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12813.
- When was CVE-2026-33265 published?
- CVE-2026-33265 was published on 2026-03-18 and last updated on 2026-06-17.
References
- https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20251205-01_LibreChat_RAG_API_Authentication_Bypass
- https://www.openwall.com/lists/oss-security/2026/03/18/3
Affected products (1)
- cpe:2.3:a:librechat:librechat:0.8.1:rc2:*:*:*:*:*:*
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