CVE-2025-8849

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Source
https://cve.org/CVERecord?id=CVE-2025-8849
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-8849.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-8849
Published
2025-10-30T23:42:41Z
Modified
2026-09-27T11:45:13Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
Denial of Service in danny-avila/librechat
Details

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.

Database specific 
{
    "cna_assigner":  "@huntr_ai",
    "cwe_ids":  [
        "CWE-400"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/8xxx/CVE-2025-8849.json"
}
References

Affected packages

Git / github.com/LibreChat-AI/LibreChat

Affected ranges

Type
GIT
Repo
https://github.com/LibreChat-AI/LibreChat
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
edf33bedcbb08c33e59df76f06454ed7efd896f9
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "v0.8.0-rc2"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.7.9-NA
librechat-1.*
librechat-1.8.9
v0.*
v0.0.1
v0.0.2
v0.0.3
v0.0.6
v0.1.0
v0.1.1
v0.2.0
v0.3.0
v0.3.3
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.4.7
v0.4.8
v0.5.0
v0.5.1
v0.5.2
v0.5.3
v0.5.4
v0.5.5
v0.5.6
v0.5.7
v0.5.8
v0.5.9
v0.6.0
v0.6.1
v0.6.10
v0.6.5
v0.6.6
v0.6.9
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.7.3-rc
v0.7.3-rc2
v0.7.4
v0.7.4-rc1
v0.7.5
v0.7.5-rc1
v0.7.5-rc2
v0.7.6
v0.7.6-rc1
v0.7.7
v0.7.7-rc1
v0.7.8
v0.7.8-rc1
v0.7.9
v0.7.9-rc1
v0.8.0-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-8849.json"