CVE-2026-26080
Low
Description
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.
SeverityLow
CVSS3.7
Exploit probability—
ProductHaproxy
PublishedJul 20, 2026
First seenJul 20, 2026
Weakness typeCWE-252CWE-252
How to fix
Update
- haproxy haproxy3.2.12, 3.3.3 or later
- haproxy aloha17.0.18, 17.5.16 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| haproxy haproxy | 3.2 ≤ v < 3.2.12, 3.3 ≤ v < 3.3.3 | 3.2.12, 3.3.3 |
| haproxy aloha | 17.0.0 ≤ v < 17.0.18, 17.5.0 ≤ v < 17.5.16 | 17.0.18, 17.5.16 |
| haproxy haproxy_enterprise | 3.2r1 | — |
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