SB2026021273 - Debian update for haproxy
Published: February 12, 2026
Security Bulletin ID
SB2026021273
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) Integer underflow (CVE-ID: CVE-2026-26081)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to integer underflow when handling QUIC packets. A remote attacker can send a specially crafted request to the server, trigger an integer underflow and perform a denial of service attack.
Remediation
Install update from vendor's website.