CVE-2026-76578
criticalpriority · attend · 49OT risk · highEPSS 0.012 · 68 %ileexploit · PoCDEUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- BrainBob/CVE-2026-76578BrainBob/CVE-2026-76578PoC · poc_in_github
affected products (5)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3552Red Hat Enterprise Linux (FreeIPA): Mehrere SchwachstellenDeutsch2026-09-23csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Denial-of-Service-Zustände herbeizuführen, Cross-Site-Scripting-Angriffe durchzuführen, Informationen offenzulegen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen und Berechtigungen zu erweitern (einschließlich des Erwerbs von Administratorrechten).
sources
Which sources assert this record, and when.
references (11) nvd
External citations — patches, advisories, analysis.
- 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
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