RLSA-2026:77534

Source
https://errata.rockylinux.org/RLSA-2026:77534
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:77534.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:77534
Upstream
  • CVE-2026-87853
Published
2026-10-09T12:10:46Z
Modified
2026-10-09T12:45:02Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Moderate: sssd security update
Details

The System Security Services Daemon (SSSD) service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch (NSS) and the Pluggable Authentication Modules (PAM) interfaces toward the system, and a pluggable back-end system to connect to multiple different account sources.

Security Fix(es):

  • sssd: sssd: IdP authentication prefix comparison allows cross-user impersonation (CVE-2026-87853)

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-2026:77534"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:10 / sssd

Package

Name
sssd
Purl
pkg:rpm/rocky-linux/sssd?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:2.12.0-3.el10_2.2
Database specific
Show details
{
    "yum_repository": "BaseOS"
}

Database specific

source
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:77534.json"