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CVE-2026-55203 HAProxy - Integer Overflow in FCGI Demux Record Length Field
| Reporter | Title | Published | Views | Family All 39 |
|---|---|---|---|---|
 | CVE-2026-55203 | 18 Jun 202616:05 | – | attackerkb |
 | CVE-2026-55203 | 18 Jun 202616:05 | – | alpinelinux |
 | CVE-2026-55203 affecting package haproxy for versions less than 2.9.11-7 | 1 Jul 202602:06 | – | cbl_mariner |
 | CVE-2026-55203 vulnerabilities | 7 Jul 202614:17 | – | cgr |
 | CVE-2026-55203 | 18 Jun 202617:28 | – | circl |
 | CVE-2026-55203 | 18 Jun 202616:05 | – | cve |
 | CVE-2026-55203 | 18 Jun 202616:05 | – | debiancve |
 | EUVD-2026-37905 | 18 Jun 202616:05 | – | euvd |
 | HAProxy - Integer Overflow in FCGI Demux Record Length Field | 27 Jun 202608:07 | – | mscve |
 | CVE-2026-55203 | 18 Jun 202617:16 | – | nvd |
10
[
{
"vendor": "haproxy",
"product": "haproxy",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"status": "affected",
"versionType": "semver",
"lessThanOrEqual": "3.4.0"
},
{
"status": "unaffected",
"version": "5985276735777634d8c85f1d73bb7764aab0d6dd",
"versionType": "git"
}
],
"repo": "https://github.com/haproxy/haproxy"
}
]Data
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18 Jun 2026 16:05Current
CVSS 3.17.5
CVSS 49
EPSS0.00321