CVE-2026-54029

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Source
https://cve.org/CVERecord?id=CVE-2026-54029
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54029.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54029
Aliases
  • GHSA-8892-xj8q-59xc
Published
2026-06-25T15:51:23.822Z
Modified
2026-07-08T08:13:48.155987860Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
LibreChat: IDOR in Message Deletion — Incomplete Fix for CVE-2024-41703 Leaves deleteMessages() Without User Filter
Details

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the DELETE /api/messages/:conversationId/:messageId endpoint allows any authenticated user to delete any other user's messages. The validateMessageReq middleware only validates that the conversationId belongs to the requesting user, but the handler calls deleteMessages({ messageId }) using only the messageId as the MongoDB filter — without adding a user constraint. An attacker provides their own valid conversationId (to pass validation) and the victim's messageId (to target deletion), resulting in permanent, irrecoverable message deletion. This vulnerability is fixed in 0.8.4-rc1.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54029.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-862"
    ]
}
References

Affected packages

Git / github.com/danny-avila/librechat

Affected ranges

Type
GIT
Repo
https://github.com/danny-avila/librechat
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b5a55b23a4b2f5f6428679b1ee358f18b02d51d8
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "cpe": "cpe:2.3:a:librechat:librechat:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.8.4-rc1"
        },
        {
            "last_affected": "0.8.3"
        }
    ]
}

Affected versions

chart-1.*
chart-1.9.0
chart-1.9.1
chart-1.9.2
chart-1.9.3
chart-1.9.4
chart-1.9.5
chart-1.9.6
chart-1.9.7
chart-1.9.8
chart-1.9.9
chart-2.*
chart-2.0.0
chart-2.0.1
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
v0.8.0-rc1
v0.8.0-rc2
v0.8.0-rc3
v0.8.0-rc4
v0.8.1
v0.8.1-rc1
v0.8.1-rc2
v0.8.2
v0.8.2-rc1
v0.8.2-rc2
v0.8.2-rc3
v0.8.3
v0.8.3-rc1
v0.8.3-rc2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54029.json"