SB20260202118 - Remote denial of service in OpenBSD httpd
Published: February 2, 2026
Security Bulletin ID
SB20260202118
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: N/A)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a use-after-free error when handling HTTP requests with chuncked encoding in server_http.c within httpd(8). A remote non-authenticated attacker can send a specially crafted HTTP request and perform a denial of service attack.
Remediation
Install update from vendor's website.