CVE-2025-8849
highpriority · track · 30EPSS 0.003 · 28 %ileEURUUSEPSS · scored 2026-10-27
LibreChat version 0.7.9 is vulnerable to a Denial of Service (DoS) attack due to unbounded parameter values in the `/api/memories` endpoint. The `key` and `value` parameters accept arbitrarily large inputs without proper validation, leading to a null pointer error in the Rust-based backend when excessively large values are submitted. This results in the inability to create new memories, impacting the stability of the service.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.4–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-8849cnnvd
- https://github.com/danny-avila/LibreChat/releasesPatchcnnvd
- https://github.com/danny-avila/librechat/commit/edf33bedcbb08c33e59df76f06454ed7efd896f9cnnvd
- https://huntr.com/bounties/e9d9404c-cd19-4226-a580-9cba14b7d7d6cnnvd
- https://github.com/danny-avila/librechat/commit/edf33bedcbb08c33e59df76f06454ed7efd896f9enisa_euvd
- https://huntr.com/bounties/e9d9404c-cd19-4226-a580-9cba14b7d7d6enisa_euvd
- https://github.com/danny-avila/librechat/commit/edf33bedcbb08c33e59df76f06454ed7efd896f9Patchnvd
- https://huntr.com/bounties/e9d9404c-cd19-4226-a580-9cba14b7d7d6ExploitMitigationThird Party Advisorynvd
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