CVE-2026-36829 | An authentication bypass vulnerability exists in the embedde… | CVSS 9.8 CRITICAL

Description

An authentication bypass vulnerability exists in the embedded HTTP server of Panabit PAP-XM320 up to and including v7.7. The server validates session cookies using a filesystem existence check based on a user-controlled cookie value without proper sanitization, allowing directory traversal and bypass of authentication.

Metadata

CVE ID: CVE-2026-36829
State: PUBLISHED
Assigner: mitre
Reserved: 2026-04-06 00:00 UTC
Published: 2026-05-19 00:00 UTC
Last updated: 2026-05-19 17:37 UTC
Primary CWE: CWE-22
CWE-22 Improper Limitation of a Pathname to a Restricted Dir…
Vendor / Product: n/a / n/a
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
n/a	n/a	—	n/a

Weakness (CWE)

CWE	Source	Description
—	cna	n/a
CWE-22	adp	CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-287	adp	CWE-287 Improper Authentication

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (2)