SB2026030635 - Path traversal in OpenBSD pledge(2)
Published: March 6, 2026
Security Bulletin ID
SB2026030635
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Path traversal (CVE-ID: N/A)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to input validation error in pledge(2) mechanism in sys/kern/kern_pledge.c. A local user can use the ".." characters to access files outside of "/usr/share/zoneinfo".
Remediation
Install update from vendor's website.