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CVE-2026-115221

Ipa: freeipa: freeipa uses subject cn as proof of certificate ownership

5.4 Medium

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
Low
Availability
Low

Exploit likelihood

0.14%Unchanged since Oct 23, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.4

Ipa: freeipa: freeipa uses subject cn as proof of certificate ownership

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.

Record
CVE-2026-115221
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness
CWE-863
Updated
2026-11-05
EUVDEUVD-2026-108516 5.4

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.

Record
EUVD-2026-108516
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Updated
2026-11-05
GitHub AdvisoriesGHSA-jpcx-58w6-p2v2 5.4

A flaw was found in FreeIPA. An improper authorization check allows an authenticated host to...

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.

Record
GHSA-jpcx-58w6-p2v2
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness
CWE-863
Updated
2026-11-02
NVD 5.4

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.

Record
CVE-2026-115221
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness
CWE-863
Updated
2026-11-05
OSVDEBIAN-CVE-2026-115221 5.4

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.

Record
DEBIAN-CVE-2026-115221
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Updated
2026-11-07
OSVUBUNTU-CVE-2026-115221 5.4

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.

Record
UBUNTU-CVE-2026-115221
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
freeipa
Debian:12
All versions, plus listed versions
4.10.1+dfsg1-1+exp14.10.1-1+exp14.10.2-14.10.2-24.10.2-2+exp1
Show 14 moreShow less
4.11.1-14.11.1-1+exp14.11.1-24.11.1-2+exp14.11.1-2.14.12.2-14.12.2-24.12.2-34.12.4-14.12.4-24.13.1-14.9.11-14.9.11-1+exp14.9.11-2
None known
freeipa
Debian:13
All versions, plus listed versions
4.12.4-14.12.4-24.13.1-1
None known
freeipa
Debian:14
All versions, plus listed versions
4.12.4-14.12.4-24.13.1-1
None known
freeipa
Ubuntu:Pro:14.04:LTS
All versions, plus listed versions
3.2.1-0ubuntu13.3.4-0ubuntu13.3.4-0ubuntu23.3.4-0ubuntu33.3.4-0ubuntu3.13.3.4-0ubuntu3.1+esm1
None known
freeipa
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
4.1.4-14.3.1-0ubuntu14.3.1-0ubuntu1+esm1
None known
freeipa
Ubuntu:18.04:LTS
All versions, plus listed versions
4.4.4-3ubuntu14.4.4-44.7.0~pre1+git20180411-2ubuntu14.7.0~pre1+git20180411-2ubuntu2
None known
freeipa
Ubuntu:20.04:LTS
All versions, plus listed versions
4.8.1-2ubuntu14.8.3-14.8.6-1ubuntu2
None known
freeipa
Ubuntu:22.04:LTS
All versions, plus listed versions
4.8.6-1ubuntu64.8.6-1ubuntu84.8.6-1ubuntu94.9.8-1
None known
freeipa
Ubuntu:24.04:LTS
All versions, plus listed versions
4.10.2-14.10.2-24.10.2-2ubuntu34.11.1-14.11.1-2
None known
freeipa
Ubuntu:26.10
All versions, plus listed versions
4.13.1-14.13.1-1build1
None known
freeipa
Ubuntu:26.04:LTS
All versions, plus listed versions
4.12.4-14.12.4-24.13.1-1
None known

History

History
RecordedChangedSources
affectedEUVD, NVD, OSV
factsCVE List
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-115221 is a medium vulnerability (CVSS 5.4) in Red Hat Enterprise Linux 10, published October 22, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.

References

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