PYSEC-2026-1625

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/mesop/PYSEC-2026-1625.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-1625
Aliases
Published
2026-07-07T14:34:42.040306Z
Modified
2026-07-07T17:47:04.424325879Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Mesop has a local file Inclusion via static file serving functionality
Details

A vulnerability has been discovered and fixed in Mesop that could potentially allow unauthorized access to files on the server hosting the Mesop application. The vulnerability was related to insufficient input validation in a specific endpoint. This could have allowed an attacker to access files not intended to be served.

Users are strongly advised to update to the latest version of Mesop immediately. The latest version includes a fix for this vulnerability.

We would like to thank @Letm3through for reporting this issue and proposing mitigations to address this issue.

References

Affected packages

PyPI / mesop

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0.9.0
Fixed
0.12.4

Affected versions

0.*
0.9.0
0.9.1rc1
0.9.1
0.9.2rc1
0.9.2
0.9.3rc0
0.9.3
0.9.4rc0
0.9.4
0.9.5rc0
0.9.5
0.10.0rc0
0.10.0rc1
0.10.0rc2
0.10.0
0.11.0rc0
0.11.0
0.11.1
0.12.0rc0
0.12.0
0.12.1rc0
0.12.1
0.12.2
0.12.3rc0
0.12.3
0.12.4rc0

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/mesop/PYSEC-2026-1625.yaml"