Denial of Service Vulnerability in LibreChat by Danny Avila
CVE-2025-8849

5.4MEDIUM

Key Information:

Vendor

Danny-avila

Status
Danny-avila/librechat
Vendor
CVE Published:
30 October 2025

What is CVE-2025-8849?

LibreChat version 0.7.9 is susceptible to a Denial of Service attack stemming from unbounded parameter values in the /api/memories endpoint. The key and value parameters are not properly validated, allowing attackers to submit excessively large inputs. This flaw can induce a null pointer error in the Rust-based backend, disrupting the ability to create new memories and causing service instability.

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Deploy the Patch

Affected Version(s)

danny-avila/librechat < unspecified

References

https://huntr.com/bounties/e9d9404c-cd19-4226-a580-9cba14...
https://github.com/danny-avila/librechat/commit/edf33bedc...

CVSS V3.0

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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