CVE-2026-34371

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Source
https://cve.org/CVERecord?id=CVE-2026-34371
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-34371.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-34371
Aliases
  • GHSA-qrm5-r67f-6692
Published
2026-04-07T21:08:13.175Z
Modified
2026-04-09T11:45:28.483513Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N CVSS Calculator
Summary
LibreChat Affected by Arbitrary File Write via `execute_code` Artifact Filename Traversal
Details

LibreChat is a ChatGPT clone with additional features. Prior to 0.8.4, LibreChat trusts the name field returned by the executecode sandbox when persisting code-generated artifacts. On deployments using the default local file strategy, a malicious artifact filename containing traversal sequences (for example, ../../../../../app/client/dist/poc.txt) is concatenated into the server-side destination path and written with fs.writeFileSync() without sanitization. This gives any user who can trigger executecode an arbitrary file write primitive as the LibreChat server user. This vulnerability is fixed in 0.8.4.

Database specific 
{
    "cwe_ids": [
        "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34371.json",
    "cna_assigner": "GitHub_M"
}
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
0736ff26686e911c9785a237c63a799db1813f0b
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.8.4"
        }
    ]
}

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
v0.8.4-rc1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-34371.json"