RLSA-2026:55772

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Source

https://errata.rockylinux.org/RLSA-2026:55772

Import Source

https://storage.googleapis.com/resf-osv-data/RLSA-2026:55772.json

JSON Data

https://api.osv.dev/v1/vulns/RLSA-2026:55772

Upstream

CVE-2026-55203

CVE-2026-55204

Published

2026-08-18T06:04:25Z

Modified

2026-08-18T06:30:06Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N CVSS Calculator

Summary

Important: haproxy security update

Details

The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications.

Security Fix(es):

haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions (CVE-2026-55204)
haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record length handling (CVE-2026-55203)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Database specific

{
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:55772"
}

References

Credits

- Rocky Enterprise Software Foundation
- Red Hat

Affected packages

Rocky Linux:9 / haproxy

Package

Name: haproxy
Purl: pkg:rpm/rocky-linux/haproxy?distro=rocky-linux-9&epoch=0

Affected ranges

Type

ECOSYSTEM

Events

Introduced

Fixed

0:2.8.14-3.el9_8.2

Database specific

Show details

{
    "yum_repository": "AppStream"
}

Database specific

source

"https://storage.googleapis.com/resf-osv-data/RLSA-2026:55772.json"