RLSA-2026:49838

Source
https://errata.rockylinux.org/RLSA-2026:49838
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:49838.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:49838
Upstream
Published
2026-08-06T00:04:20.676095Z
Modified
2026-08-06T00:30:06.460603877Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Important: osbuild-composer security, bug fix, and enhancement update
Details

A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building images for local usage, it can also upload images directly to cloud. It is compatible with composer-cli and cockpit-composer clients.

Security Fix(es):

  • crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281)

  • crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)

Bug Fix(es) and Enhancement(s):

  • bootupctl backend install --auto fails bootupd EFI metadata missing (JIRA:Rocky Linux-185745)

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.

References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:9 / osbuild-composer

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:165.1-4.el9_8.rocky.0.1
Database specific
{
    "yum_repository": "AppStream"
}

Database specific

source
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:49838.json"