CVE-2026-86099

Katalog CVE

CVSS 8.2 · High EPSS 0,60%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'). Skor CVSS 3.1 8.2 (High) menurut vulncheck.com.

Deskripsi (NVD)

Chainlit through 2.12.0 fails to validate the client-supplied socket.io sessionId parameter, allowing unauthenticated attackers to traverse filesystem paths by injecting absolute or relative path sequences. Attackers can craft malicious sessionId values that escape the upload directory and recursively delete arbitrary directories accessible to the service process.

Rincian

Terbit di NVD

9 September 2026

Terakhir diubah

9 September 2026

Status NVD

Deferred

CVSS 3.1

8.2 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

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

EPSS (30 hari)

0,60% peluang dieksploitasi; lebih tinggi dari 47,2% 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://github.com/Chainlit/chainlit
• https://github.com/Chainlit/chainlit/blob/2.12.0/backend/chainlit/session.py
• https://github.com/Chainlit/chainlit/blob/2.12.0/backend/chainlit/socket.py
• https://pypi.org/project/chainlit/
• https://www.vulncheck.com/advisories/chainlit-through-2.12.0-path-traversal-via-socket-io-sessionid