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Vulnerability · Published Oct 22, 2026 · Assigned by redhat

CVE-2026-115221Ipa: freeipa: freeipa uses subject cn as proof of certificate ownership

Medium 5.4

In plain English

A medium-severity incorrect authorization in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.1%top 96.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in FreeIPA. An improper authorization check allows an authenticated host to retrieve and revoke digital certificates assigned to other users or services. This issue occurs because FreeIPA verifies ownership solely by matching the host name to the certificate's subject Common Name (CN), without confirming actual ownership in the directory service. Consequently, an enrolled host can disrupt services by revoking certificates belonging to other entities.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12freeipano fix listedDEBIAN-CVE-2026-115221
Debian:13freeipano fix listedDEBIAN-CVE-2026-115221
Ubuntu:22.04:LTSfreeipano fix listedUBUNTU-CVE-2026-115221
Ubuntu:24.04:LTSfreeipano fix listedUBUNTU-CVE-2026-115221
Ubuntu:26.04:LTSfreeipano fix listedUBUNTU-CVE-2026-115221
Ubuntu:26.10freeipano fix listedUBUNTU-CVE-2026-115221

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References