RLSA-2026:71543

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Source
https://errata.rockylinux.org/RLSA-2026:71543
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:71543.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:71543
Upstream
CVE (4)
Published
2026-09-25T12:09:37Z
Modified
2026-09-25T12:30:02Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
Important: cockpit-image-builder security update
Details

The image-builder-frontend generates custom images suitable for deploying systems or uploading to the cloud. It integrates into Cockpit as a frontend for osbuild.

Security Fix(es):

  • fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding (CVE-2026-75899)

  • fast-uri: fast-uri: Server-side request forgery via malformed IPv6 normalization (CVE-2026-75975)

  • fast-uri: fast-uri: URI parsing flaw enables server-side request forgery and redirects (CVE-2026-76172)

  • fast-uri: fast-uri: Authority Injection via Unvalidated Port Serialization (CVE-2026-84292)

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-2026:71543"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:10 / cockpit-image-builder

Package

Name
cockpit-image-builder
Purl
pkg:rpm/rocky-linux/cockpit-image-builder?distro=rocky-linux-10-aarch64&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:94.4-1.el10_2
Database specific
Show details 
{
    "yum_repository":  "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:71543.json"