CVE catalog
CVE-2019-19330
haproxy: CVE-2019-19330
- Severity
- Medium · CVSS 5.9
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 4.03% · Oct 25, 2026
The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks.
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 | fixed |
| Debian | haproxy | trixie-security | 3.0.11-1+deb13u4 | fixed |
| Debian | haproxy | bookworm | 2.6.12-1+deb12u3 | fixed |
| Debian | haproxy | bookworm-security | 2.6.12-1+deb12u4 | fixed |
| Alpine | haproxy | 3.8 | 1.8.23 | fixed |
| Alpine | haproxy | 3.9 | 1.8.23-r0 | fixed |
| Ubuntu | haproxy | 18.04 | 1.7.9-1ubuntu1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.7.9-1ubuntu2 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.4-1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.7-1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.2 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.3 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.4 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.6 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.7 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.8 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.9 | fixed |
| Ubuntu | haproxy | 18.04 | 1.7.9-1ubuntu1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.7.9-1ubuntu2 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.4-1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.7-1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.1 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.2 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.3 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.4 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.6 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.7 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.8 | vulnerable |
| Ubuntu | haproxy | 18.04 | 1.8.8-1ubuntu0.9 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | haproxy | source | sid | 2.0.10-1 | not yet assigned | Not reported | Not reported |
| Debian | haproxy | source | forky | 2.0.10-1 | not yet assigned | Not reported | Not reported |
| Debian | haproxy | source | trixie | 2.0.10-1 | not yet assigned | Not reported | Not reported |
| Debian | haproxy | source | bookworm | 2.0.10-1 | not yet assigned | Not reported | Not reported |
| Alpine | haproxy | apk | 3.8 | 1.8.23 | Not reported | ALPINE-CVE-2019-19330 | Not reported |
| Alpine | haproxy | apk | 3.9 | 1.8.23-r0 | Not reported | ALPINE-CVE-2019-19330 | Not reported |
| Ubuntu | haproxy | deb | 18.04 | 1.8.8-1ubuntu0.9 | Not reported | USN-4212-1 | Not reported |
| Ubuntu | haproxy | deb | 18.04 | 1.8.8-1ubuntu0.9 | Not reported | UBUNTU-CVE-2019-19330 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [haproxy]Unknown
Details (4)
2.6.12-1+deb12u3· amd64 · bookwormFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
2.6.12-1+deb12u3· arm64 · bookwormFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
2.6.12-1+deb12u3· amd64 · bookworm-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
2.6.12-1+deb12u3· arm64 · bookworm-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
- [haproxy-doc]Unknown
Source package: [haproxy]
Details (4)
2.6.12-1+deb12u3· all · bookwormFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
2.6.12-1+deb12u3· all · bookwormFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
2.6.12-1+deb12u3· all · bookworm-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
2.6.12-1+deb12u3· all · bookworm-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
- [vim-haproxy]Unknown
Source package: [haproxy]
Details (4)
2.6.12-1+deb12u3· all · bookwormFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
2.6.12-1+deb12u3· all · bookwormFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
2.6.12-1+deb12u3· all · bookworm-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
2.6.12-1+deb12u3· all · bookworm-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · bookworm; dsa · haproxy · debian · 12
[Debian 13 (Trixie)]
- [haproxy]Unknown
Details (5)
3.0.11-1+deb13u3· amd64 · trixieFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u3· arm64 · trixieFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u3· amd64 · trixie-security · Historical versionFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u3· arm64 · trixie-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u4· amd64 · trixie-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
- [haproxy-doc]Unknown
Source package: [haproxy]
Details (5)
3.0.11-1+deb13u3· all · trixieFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u3· all · trixieFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u3· all · trixie-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u3· all · trixie-security · Historical versionFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u4· all · trixie-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
- [vim-haproxy]Unknown
Source package: [haproxy]
Details (5)
3.0.11-1+deb13u3· all · trixieFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u3· all · trixieFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u3· all · trixie-security · Historical versionFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u3· all · trixie-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
3.0.11-1+deb13u4· all · trixie-securityFixed · Fixed:
2.0.10-1dsa · haproxy · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2020_1725.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2019-19330]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-19330]
- [https://osv.dev/vulnerability/DSA-4577-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-19330]
- [https://osv.dev/vulnerability/USN-4212-1]
- [https://security-tracker.debian.org/tracker/CVE-2019-19330]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-19330.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0054.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]