HAProxy ↗
HAProxy · Infrastructure
100/100 Healthy
Summary iPlain-English security verdict for HAProxy, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
HAProxy currently scores 100/100 — healthy. No tracked vulnerabilities are currently known to be exploited in the wild. The latest supported release is 3.4.0. It's on the latest patch with no significant known issues — keep it current.
Disclosure trend iNew CVEs published for HAProxy each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
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Patch priority — what to act on iThe issues to fix first — actively exploited (CISA KEV) first, then by exploitation probability (EPSS), then severity. Each row's "→ fixed in" is the earliest version that patches it; "see advisory" means no fixed version is published.
Most urgent first — actively exploited, then likeliest to be exploited.
CVE-2021-40346 HIGH Integer overflow EPSS 92% → fixed in 2.4.4 CVE-2020-11100 HIGH Out-of-bounds write EPSS 74% → fixed in 2.1.4 CVE-2022-0711 HIGH CWE-835 EPSS 66% → fixed in 2.4.13 CVE-2016-5360 HIGH Memory corruption EPSS 46% → see advisory CVE-2019-14241 HIGH CWE-835 EPSS 37% → see advisory CVE-2023-25725 CRITICAL CWE-444 EPSS 18% → fixed in 2.7.3 CVE-2019-19330 CRITICAL Injection EPSS 1% → fixed in 2.0.10Versions & lifecycle iWhen each release line stops receiving security patches (end-of-life). After EOL there are no more fixes — plan upgrades before these dates.
How long each HAProxy release line is supported — and when it sunsets.
3.4 latest 3.4.0 Supported until 2031-04-01
3.3 latest 3.3.10 Supported until 2027-01-01
3.2 latest 3.2.19 Supported until 2030-04-01
3.1 latest 3.1.17 End of life ended 2026-01-01
3.0 latest 3.0.23 Supported until 2029-04-01
2.9 latest 2.9.15 End of life ended 2025-03-21
2.8 latest 2.8.24 Supported until 2028-04-01
2.7 latest 2.7.12 End of life ended 2024-04-05
2.6 latest 2.6.29 Supported until 2027-04-01
2.5 latest 2.5.14 End of life ended 2023-05-02
See all upcoming end-of-life dates →