CVE-2026-51884

Katalog CVE

CVSS 9.8 · Critical EPSS 0,51%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'). Skor CVSS 3.1 9.8 (Critical) menurut CISA ADP.

Deskripsi (NVD)

The /knowledge_base/upload_temp_docs temporary document upload endpoint in Langchain Chatchat 0.3.1 is vulnerable to path traversal. By crafting malicious filenames, an attacker can write files to arbitrary locations on the server, bypassing the intended restrictions on the temporary directory.

Rincian

Terbit di NVD

1 Oktober 2026

Terakhir diubah

5 Oktober 2026

Status NVD

Deferred

CVSS 3.1

9.8 (Critical), sumber CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

0,51% peluang dieksploitasi; lebih tinggi dari 41,6% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://gist.github.com/Ro1ME/da028c9ce13dd888e265b9bef01d6eca
• https://github.com/chatchat-space/Langchain-Chatchat/issues/5466