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

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FreeIPA 中存在一个漏洞。由于授权检查不当，已认证的主机可以检索并撤销分配给其他用户或服务的数字证书。该问题产生的原因是：FreeIPA 仅通过将主机名与证书主题中的通用名称（CN）进行匹配来验证所有权，而未在目录服务中确认实际的所有权关系。因此，已注册的主机可以通过撤销属于其他实体的证书来破坏相关服务。

CVSS 5.4 · Medium
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I. Basic Information for CVE-2026-115221

Vulnerability Information
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Vulnerability Title
Ipa: freeipa: freeipa uses subject cn as proof of certificate ownership
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2026-115221

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III. Intelligence Information for CVE-2026-115221

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Other References for CVE-2026-115221 (2)

Same Patch Batch · Red Hat · 2026-10-22 · 5 CVEs total

CVE-2026-111079 7.4 HIGH Goose: goose: shell history and environment leak via terminal integration
CVE-2026-115424 5.5 MEDIUM Oc: oc: symlink/hardlink target validation bypass in oc image extract allows file write ou
CVE-2026-115207 5.5 MEDIUM Patch: filename validation bypass in reversal fallback allows file creation outside the wo
CVE-2026-115449 3.5 LOW Libslirp: libslirp: icmp echo reply length desynchronization leaks host ip to guest

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-863

V. Comments for CVE-2026-115221

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