kritik
CVE-2026-55203
haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record length handling
En geç 24 Eki 2026, 07:11 UTC tarihinden beri Trivy database'indeO derlemeden önce ne zaman girdiği kayıtlı değil.
Kaynağa göre önem derecesi
NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Red Hat7.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
Bitnami9.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:L/SI:H/SA:N
Trivy'nin kendi etiketi CRITICAL. Kritik diyenler: NVD, Bitnami. Daha düşük diyenler: Red Hat (yüksek), AlmaLinux (yüksek), Azure Linux (yüksek), Oracle (yüksek), Rocky Linux (yüksek), Ubuntu (orta).
Açıklama
HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgi_conn structure's drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535 and paddingLength is 1 or more, the drl field wraps to 0, causing incorrect record consumption and allowing malicious FastCGI backends to desynchronize the FCGI framing parser, potentially causing request routing errors, response smuggling, or memory safety issues.
Etkilenen paketler ve düzeltilmiş sürümler
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | haproxy | 2.4.36, 2.6.30, 2.8.25, 3.0.24, 3.2.20, 3.4.1 |
| alma 10 | haproxy | 3.0.5-6.el10_2.2 |
| alma 9 | haproxy | 2.8.14-3.el9_8.2 |
| Azure Linux 3.0 | haproxy | 0:2.9.11-7.azl3 |
| chainguard | haproxy-2.4, haproxy-2.6, haproxy-2.8 ve 3 tane daha | 2.4.36-r0 ve 5 tane daha |
| debian 11 | haproxy | düzeltme belirtilmemiş |
| debian 12 | haproxy | düzeltme belirtilmemiş |
| debian 13 | haproxy | düzeltme belirtilmemiş |
| debian 14 | haproxy | 3.2.20-1 |
| echo | haproxy | düzeltme belirtilmemiş |
| minimos | haproxy-2.6, haproxy-2.8, haproxy-3.0 ve 2 tane daha | 2.6.30-r0 ve 4 tane daha |
| Oracle Linux 9 | haproxy | 2.8.14-3.el9_8.2 |
34 kaynaktaki 49 kaydın hepsini göster
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | haproxy | 2.4.36, 2.6.30, 2.8.25, 3.0.24, 3.2.20, 3.4.1 |
| alma 10 | haproxy | 3.0.5-6.el10_2.2 |
| alma 9 | haproxy | 2.8.14-3.el9_8.2 |
| Azure Linux 3.0 | haproxy | 0:2.9.11-7.azl3 |
| chainguard | haproxy-2.4 | 2.4.36-r0 |
| chainguard | haproxy-2.6 | 2.6.31-r0 |
| chainguard | haproxy-2.8 | 2.8.26-r0 |
| chainguard | haproxy-3.0 | 3.0.24-r0 |
| chainguard | haproxy-3.2 | 3.2.20-r0 |
| chainguard | haproxy-3.3 | 3.3.11-r0 |
| debian 11 | haproxy | düzeltme belirtilmemiş |
| debian 12 | haproxy | düzeltme belirtilmemiş |
| debian 13 | haproxy | düzeltme belirtilmemiş |
| debian 14 | haproxy | 3.2.20-1 |
| echo | haproxy | düzeltme belirtilmemiş |
| minimos | haproxy-2.6 | 2.6.30-r0 |
| minimos | haproxy-2.8 | 2.8.25-r0 |
| minimos | haproxy-3.0 | 3.0.24-r0 |
| minimos | haproxy-3.2 | 3.2.20-r0 |
| minimos | haproxy-3.4 | 3.4.1-r0 |
| Oracle Linux 9 | haproxy | 2.8.14-3.el9_8.2 |
| rapidfort alma 10 | haproxy | 3.0.5-6.el10_2.2 |
| rapidfort alma 9 | haproxy | 2.8.14-3.el9_8.2 |
| rapidfort alpine 3.20 | haproxy | 3.0.24-r0 |
| rapidfort alpine 3.21 | haproxy | 3.0.24-r0 |
| rapidfort amazon linux 2023 | haproxy | 3.0.23-2.amzn2023.0.1 |
| rapidfort debian 12 | haproxy | 0:3.2.20-1 |
| rapidfort debian 13 | haproxy | 0:3.2.20-1 |
| rapidfort fedora 43 | haproxy | 3.0.24-1.fc43 |
| rapidfort Oracle Linux 10 | haproxy | 0:3.0.5-6.el10_2.2 |
| rapidfort Oracle Linux 9 | haproxy | 0:2.8.14-3.el9_8.2 |
| rapidfort rocky 9 | haproxy | 0:2.8.14-3.el9_8.2 |
| rapidfort ubuntu 20.04 | haproxy | 0:2.4.30-0ubuntu0.22.04.2, 0:2.8.16-0ubuntu0.24.04.3, 0:3.2.9-1ubuntu2.2 |
| rapidfort ubuntu 22.04 | haproxy | 0:2.4.30-0ubuntu0.22.04.2, 0:2.8.16-0ubuntu0.24.04.3, 0:3.2.9-1ubuntu2.2 |
| rapidfort ubuntu 24.04 | haproxy | 0:2.4.30-0ubuntu0.22.04.2, 0:2.8.16-0ubuntu0.24.04.3, 0:3.2.9-1ubuntu2.2 |
| Red Hat | haproxy | düzeltme belirtilmemiş |
| Red Hat | haproxy28 | düzeltme belirtilmemiş |
| Red Hat | rhceph-ci/haproxy | düzeltme belirtilmemiş |
| Red Hat | rhceph/rhceph-haproxy-rhel10 | düzeltme belirtilmemiş |
| Red Hat | rhceph/rhceph-haproxy-rhel8 | düzeltme belirtilmemiş |
| Red Hat | rhceph/rhceph-haproxy-rhel9 | düzeltme belirtilmemiş |
| rocky 10 | haproxy | 0.0.0 |
| rocky 9 | haproxy | 2.8.14-3.el9_8.2 |
| ubuntu 22.04 | haproxy | 2.4.30-0ubuntu0.22.04.2 |
| ubuntu 24.04 | haproxy | 2.8.16-0ubuntu0.24.04.3 |
| ubuntu 25.10 | haproxy | 3.0.12-0ubuntu0.25.10.5 |
| ubuntu 26.04 | haproxy | 3.2.9-1ubuntu2.2 |
| wolfi | haproxy-3.2 | 3.2.20-r0 |
| wolfi | haproxy-3.3 | 3.3.11-r0 |
Referanslar
- https://access.redhat.com/errata/RHSA-2026:55772
- https://access.redhat.com/security/cve/CVE-2026-55203
- https://bugzilla.redhat.com/2490518
- https://bugzilla.redhat.com/2490522
- https://bugzilla.redhat.com/show_bug.cgi?id=2490518
- https://bugzilla.redhat.com/show_bug.cgi?id=2490522
- https://creativecommons.org/licenses/by/4.0/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-55203
18 referansın hepsi
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-55204
- https://errata.almalinux.org/9/ALSA-2026-55772.html
- https://errata.rockylinux.org/RLSA-2026:55772
- https://github.com/haproxy/haproxy/commit/5985276735777634d8c85f1d73bb7764aab0d6dd
- https://linux.oracle.com/cve/CVE-2026-55203.html
- https://linux.oracle.com/errata/ELSA-2026-55772.html
- https://nvd.nist.gov/vuln/detail/CVE-2026-55203
- https://ubuntu.com/security/notices/USN-8459-1
- https://www.cve.org/CVERecord?id=CVE-2026-55203
- https://www.vulncheck.com/advisories/haproxy-integer-overflow-in-fcgi-demux-record-length-field