What is CVE-2026-26080?

CVE-2026-26080 is a low-severity vulnerability in Haproxy, classified under CWE-252. CVSS score: 3.7/10. Published 2026-07-20.

How severe is CVE-2026-26080?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Haproxy

CVE-2026-26080

HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Haproxy — versions 3.2, 3.3

Weakness classification (CWE)

CWE-252

References

cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-26080?: CVE-2026-26080 is a low-severity vulnerability in Haproxy, classified under CWE-252. CVSS score: 3.7/10. Published 2026-07-20.
How severe is CVE-2026-26080?: Low severity. CVSS v3 base score is 3.7 out of 10.