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critical · CVSS 9.8

CVE-2026-76578

Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci

Published 7 Sept 2026 · Source updated 4 Nov 2026 · Retrieved 2026-11-05 00:19 UTC

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What happened?

A flaw was found in FreeIPA. The self-managed OTP token ACI does not require authentication and does not restrict which attributes may be added alongside the token entry. An unauthenticated LDAP client can exploit this, combined with a related flaw in the underlying directory server's ACI evaluation (tracked separately), to create an arbitrary attacker-controlled Kerberos principal and have it added to the administrators group. This allows a remote, unauthenticated attacker to obtain genuine FreeIPA administrator-group membership and perform administrative operations against the directory and, on SID-enabled deployments, other IdM services.

Description supplied by CVE Program. Formatting is simplified; follow the original advisory for full details.

Affected software and versions

Source-provided software and version information
SoftwareVersion informationFixed version
ipaRed Hatunaffected: 0:4.13.4-1.el10_2 to < *See vendor advisory
ipaRed Hatunaffected: 0:4.12.2-15.el10_0.7 to < *See vendor advisory
ipaRed Hatunaffected: 0:4.6.8-5.el7_9.25 to < *See vendor advisory
idm:clientRed Hatunaffected: 8100020261007071200.143e9e98 to < *See vendor advisory
idm:DL1Red Hatunaffected: 8100020261007070536.823393f5 to < *See vendor advisory
idm:clientRed Hatunaffected: 8040020261027121250.f153676a to < *See vendor advisory
idm:DL1Red Hatunaffected: 8040020261027121355.5b01ab7e to < *See vendor advisory
idm:clientRed Hatunaffected: 8040020261027121250.f153676a to < *See vendor advisory
idm:DL1Red Hatunaffected: 8040020261027121355.5b01ab7e to < *See vendor advisory
idm:clientRed Hatunaffected: 8060020261008134123.c1533a64 to < *See vendor advisory
idm:DL1Red Hatunaffected: 8060020261008133528.ada582f1 to < *See vendor advisory
idm:clientRed Hatunaffected: 8060020261008134123.c1533a64 to < *See vendor advisory
idm:DL1Red Hatunaffected: 8060020261008133528.ada582f1 to < *See vendor advisory
idm:clientRed Hatunaffected: 8080020261007080925.e581a9e4 to < *See vendor advisory
idm:DL1Red Hatunaffected: 8080020261007071832.b0a6ceea to < *See vendor advisory
idm:clientRed Hatunaffected: 8080020261007080925.e581a9e4 to < *See vendor advisory
idm:DL1Red Hatunaffected: 8080020261007071832.b0a6ceea to < *See vendor advisory
ipaRed Hatunaffected: 0:4.13.4-1.el9_8 to < *See vendor advisory
ipaRed Hatunaffected: 0:4.10.1-12.el9_2.7 to < *See vendor advisory
ipaRed Hatunaffected: 0:4.11.0-15.el9_4.9 to < *See vendor advisory
ipaRed Hatunaffected: 0:4.12.2-14.el9_6.8 to < *See vendor advisory
ipaRed HatDefault status: unknownSee vendor advisory

Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.

Is it being exploited?

This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.

CISA data retrieved 2026-11-06 16:38 UTC. Check CISA ↗

How to respond

  1. Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
  2. Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
  3. Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.

Sources and remediation references

This public advisory does not determine whether a particular server is affected. Records are refreshed as sources change; verify urgent decisions against the original advisory.

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