CVE catalog
CVE-2026-26080
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.
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.55% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | haproxy | sid | 3.2.26-1 | fixed |
| Debian | haproxy | forky | 3.2.26-1 | fixed |
| Debian | haproxy | trixie | 3.0.11-1+deb13u3 | not affected |
| Debian | haproxy | trixie-security | 3.0.11-1+deb13u4 | not affected |
| Debian | haproxy | bookworm | 2.6.12-1+deb12u3 | not affected |
| Debian | haproxy | bookworm-security | 2.6.12-1+deb12u4 | not affected |
| Cpe | haproxy | Not reported | 3.3.3 | fixed |
| Cpe | aloha | Not reported | 17.5.16 | fixed |
| Cpe | haproxy_enterprise | Not reported | Not reported | unknown |
| Opensuse | haproxy | leap 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | fixed |
| Suse | haproxy | linux enterprise server for sap applications 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | fixed |
| Suse | haproxy | linux enterprise high availability extension 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | fixed |
| Suse | haproxy | linux micro 6.2 | 3.2.12+git0.6011f448e-160000.1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | haproxy | source | sid | 3.2.11-2 | not yet assigned | Not reported | Not reported |
| Debian | haproxy | source | forky | 3.2.11-2 | not yet assigned | Not reported | Not reported |
| Debian | haproxy | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | haproxy | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Cpe | haproxy | cpe | Not reported | 3.3.3 | Not reported | NVD-CVE-2026-26080 | Not reported |
| Cpe | aloha | cpe | Not reported | 17.5.16 | Not reported | NVD-CVE-2026-26080 | Not reported |
| Opensuse | haproxy | rpm | leap 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | Not reported | OPENSUSE-SU-2026:20290-1 | Not reported |
| Suse | haproxy | rpm | linux enterprise server for sap applications 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | Not reported | SUSE-SU-2026:20620-1 | Not reported |
| Suse | haproxy | rpm | linux enterprise high availability extension 16.0 | 3.2.12+git0.6011f448e-160000.1.1 | Not reported | SUSE-SU-2026:20616-1 | Not reported |
| Suse | haproxy | rpm | linux micro 6.2 | 3.2.12+git0.6011f448e-160000.1.1 | Not reported | SUSE-SU-2026:20557-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [haproxy]Not affected
Details (4)
2.6.12-1+deb12u3· amd64 · bookwormNot affected
nvd · haproxy · debian · bookworm
2.6.12-1+deb12u3· arm64 · bookwormNot affected
nvd · haproxy · debian · bookworm
2.6.12-1+deb12u3· amd64 · bookworm-securityNot affected
nvd · haproxy · debian · bookworm
2.6.12-1+deb12u3· arm64 · bookworm-securityNot affected
nvd · haproxy · debian · bookworm
- [haproxy-doc]Not affected
Source package: [haproxy]
Details (4)
2.6.12-1+deb12u3· all · bookwormNot affected
nvd · haproxy · debian · bookworm
2.6.12-1+deb12u3· all · bookwormNot affected
nvd · haproxy · debian · bookworm
2.6.12-1+deb12u3· all · bookworm-securityNot affected
nvd · haproxy · debian · bookworm
2.6.12-1+deb12u3· all · bookworm-securityNot affected
nvd · haproxy · debian · bookworm
- [vim-haproxy]Not affected
Source package: [haproxy]
Details (4)
2.6.12-1+deb12u3· all · bookwormNot affected
nvd · haproxy · debian · bookworm
2.6.12-1+deb12u3· all · bookwormNot affected
nvd · haproxy · debian · bookworm
2.6.12-1+deb12u3· all · bookworm-securityNot affected
nvd · haproxy · debian · bookworm
2.6.12-1+deb12u3· all · bookworm-securityNot affected
nvd · haproxy · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-26080]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-26080]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20557-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20616-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20620-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:20290-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-26080]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26080.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0410.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]