Fixed in
Check your version
haproxy -vCVEs affecting 1.8
| CVE | Title | CVSS | Exploited | EPSS | Published |
|---|---|---|---|---|---|
| CVE-2019-19330 | The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR,... | 9.8 | — | 2019-11-28 | |
| CVE-2023-25725 | HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in som... | 9.1 | — | 2023-02-14 | |
| CVE-2026-55203 | HAProxy - Integer Overflow in FCGI Demux Record Length Field | 9.0 | — | 2026-06-19 | |
| CVE-2020-11100 | In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote atta... | 8.8 | — | 2020-04-02 | |
| CVE-2026-55204 | HAProxy - NULL Pointer Dereference in hpack_dht_insert Function | 8.7 | — | 2026-06-19 | |
| CVE-2023-45539 | HAProxy before 2.8.2 accepts # as part of the URI component, which might allow remote attackers to obtain sens... | 8.2 | — | 2023-11-28 | |
| CVE-2018-10184 | An issue was discovered in HAProxy before 1.8.8. The incoming H2 frame length was checked against the max_fram... | 7.5 | — | 2018-05-09 | |
| CVE-2018-14645 | A flaw was discovered in the HPACK decoder of HAProxy, before 1.8.14, that is used for HTTP/2. An out-of-bound... | 7.5 | — | 2018-09-21 | |
| CVE-2018-20102 | An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a... | 7.5 | — | 2018-12-13 | |
| CVE-2018-20103 | An issue was discovered in dns.c in HAProxy through 1.8.14. In the case of a compressed pointer, a crafted pac... | 7.5 | — | 2018-12-13 | |
| CVE-2018-20615 | An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1... | 7.5 | — | 2019-03-19 | |
| CVE-2019-14241 | HAProxy through 2.0.2 allows attackers to cause a denial of service (ha_panic) via vectors related to htx_mana... | 7.5 | — | 2019-07-23 | |
| CVE-2019-18277 | A flaw was found in HAProxy before 2.0.6. In legacy mode, messages featuring a transfer-encoding header missin... | 7.5 | — | 2019-10-23 | |
| CVE-2023-40225 | HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before... | 7.2 | — | 2023-08-10 | |
| CVE-2018-11469 | Incorrect caching of responses to requests including an Authorization header in HAProxy 1.8.0 through 1.8.9 (i... | 5.9 | — | 2018-05-25 |
Track these versions on your own servers
InfraGuard collects installed software versions from every server and flags the ones with known vulnerabilities. Self-hosted — nothing leaves your network.
Data: CVE List (CVE® Program), NVD, CISA KEV, FIRST EPSS (see EPSS at https://www.first.org/epss), endoflife.date. Software list: awesome-selfhosted (CC BY-SA 3.0).