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.
CVE-2026-26080 is fixed in haproxy on 1 platform, first by OPENSUSE-SU-2026:20290-1, released February 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| haproxy · Debian 14 | 3.2.11-2 | DEBIAN-CVE-2026-26080 | Jul 21, 2026 |
| haproxy · opensuse-leap 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | OPENSUSE-SU-2026:20290-1 | Feb 27, 2026 |
| haproxy · sles 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | SUSE-SU-2026:20616-1 | Feb 27, 2026 |
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