CVE-2026-33054 is a critical Path Traversal vulnerability (CVSS 9.8) affecting Mesop Python UI framework versions 1.2.2 and below. This flaw allows an unauthenticated attacker to supply an untrusted state_token, leading to arbitrary file manipulation, including overwriting or removing service resources, and potential application denial of service. The vulnerability has a network attack vector with low attack complexity, posing a significant risk to systems utilizing FileStateSessionBackend. Currently, there is no public exploit code, it is not listed on CISA's KEV catalog, and community discussion remains minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.2.3CPE matchmatch criteria | cpe:2.3:a:mesop-dev:mesop:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.