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Critical Severity Vulnerability

This vulnerability has been rated as Critical severity. Immediate action is recommended.

CVE-2026-40258

Critical

Low Medium High Critical

9.1

CVSS Score

Published: Apr 17, 2026

Last Modified: Apr 17, 2026

CWE: CWE-22

Vulnerability Description

The Gramps Web API is a Python REST API for the genealogical research software Gramps. Versions 1.6.0 through 3.11.0 have a path traversal vulnerability (Zip Slip) in the media archive import feature. An authenticated user with owner-level privileges can craft a malicious ZIP file with directory-traversal filenames to write arbitrary files outside the intended temporary extraction directory on the server's local filesystem. Startig in version 3.11.1, ZIP entry names are now validated against the resolved real path of the temporary directory before extraction. Any entry whose resolved path falls outside the temporary directory raises an error and aborts the import.

CVSS Metrics

Common Vulnerability Scoring System

Vector String:

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

References & Resources

Severity Details

9.1

out of 10.0

Critical

Weakness Type (CWE)

CWE-22 Top 25 #6

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Description: The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can…
Exploit Likelihood: High
Typical Severity: High
OWASP Top 10: A01:2021-Broken Access Control
Abstraction Level: Base