CVE-2026-49114

Katalog CVE

CVSS 7.1 · High EPSS 0,16%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada linuxfoundation onnx. Skor CVSS 3.1 7.1 (High) menurut CNA.

Deskripsi (NVD)

In ONNX before 1.21.0, the 'save_external_data' function builds the external-data file path from the model's external_data location field and opens it for writing without 'O_NOFOLLOW/O_EXCL', after a non-atomic 'os.path.isfile()' check. A local attacker with write access to the directory where a victim serializes external data can deterministically pre-plant a symlink that is being followed, causing the victim's write to append to any file the victim can write, e.g. ~/.ssh/authorized_keys, cron files, or application configs. Fixed in 1.21.0.

Rincian

Terbit di NVD

21 Agustus 2026

Terakhir diubah

16 September 2026

Status NVD

Analyzed

CVSS 3.1

7.1 (High), sumber CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59: Improper Link Resolution Before File Access ('Link Following')
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/onnx/onnx/security/advisories/GHSA-q56x-g2fj-4rj6 exploit · advisory vendor
• https://www.cve.org/CVERecord?id=CVE-2026-49114 advisory pihak ketiga · vdb entry
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-233-01.json vdb entry