Haproxy
44 CVEs tracked. 1 of them are in CISA KEV.
This hub aggregates every CVE we track for Haproxy, a product in the networking infrastructure space. Use it to gauge the current risk picture and drill into individual advisories.
Haproxy CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 1 |
| 2024-11 | 1 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 0 |
| 2025-03 | 0 |
| 2025-04 | 1 |
| 2025-05 | 0 |
| 2025-06 | 0 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 0 |
| 2025-10 | 0 |
| 2025-11 | 1 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 1 |
| 2026-05 | 2 |
| 2026-06 | 2 |
| 2026-07 | 2 |
| 2026-08 | 0 |
| 2026-09 | 1 |
Severity
How the 44 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical2
- High23
- Medium18
- Low1
Latest CVEs
The 15 most recently published vulnerabilities affecting Haproxy.
- CVE-2026-90678An issue was discovered in HAProxy 3.3.0 through 3.4.4 and in 3.5-dev1 through 3.5-dev5. Exploitation requires an HTTP/3 frontend: HAProxy must be built with QUIC support and configured with a QUIC...7.5
- CVE-2026-26080HAProxy 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.3.7
- CVE-2026-26081HAProxy Community Edition 3.0 through 3.3 before 3.3.3 lacks a length check for the NEW_TOKEN format. HAProxy Enterprise and ALOHA are also affected.4.8
- CVE-2026-55204HAProxy - NULL Pointer Dereference in hpack_dht_insert Function7.5
- CVE-2026-55203HAProxy - Integer Overflow in FCGI Demux Record Length Field7.5
- BDU:2026-06268Уязвимость компонента src/cfgparse.c серверного программного обеспечения HAProxy, позволяющая нарушителю вызвать отказ в обслуживании6.2
- BDU:2026-06262Уязвимость компонента src/cfgparse.c серверного программного обеспечения HAProxy, позволяющая нарушителю вызвать отказ в обслуживании6.2
- CVE-2026-33555An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame w...4.0
- CVE-2025-11230Denial of service vulnerability in HAProxy mjson library7.5
- CVE-2025-32464HAProxy 2.2 through 3.1.6, in certain uncommon configurations, has a sample_conv_regsub heap-based buffer overflow because of mishandling of the replacement of multiple short patterns with a longer...6.8
- CVE-2024-53008Inconsistent interpretation of HTTP requests ('HTTP Request/Response Smuggling') issue exists in HAProxy. If this vulnerability is exploited, a remote attacker may access a path that is restricted...5.3
- CVE-2024-49214QUIC in HAProxy 3.1.x before 3.1-dev7, 3.0.x before 3.0.5, and 2.9.x before 2.9.11 allows opening a 0-RTT session with a spoofed IP address. This can bypass the IP allow/block list functionality.5.3
- CVE-2024-45506HAProxy 2.9.x before 2.9.10, 3.0.x before 3.0.4, and 3.1.x through 3.1-dev6 allows a remote denial of service for HTTP/2 zero-copy forwarding (h2_send loop) under a certain set of conditions, as ex...7.5
- CVE-2023-45539HAProxy before 2.8.2 accepts # as part of the URI component, which might allow remote attackers to obtain sensitive information or have unspecified other impact upon misinterpretation of a path_end...8.2
- CVE-2023-44487The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.7.5
Product grouping is registry-driven, with AI assist and human review. How it works