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CVE-2026-19550VulnerabilityPublished Updated

FreeIPA. The trust-fetch-domains command · Incorrect Authorization

Source GCVE Database

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Authoritative record:CVE-2026-19550· High 8.2

Not known to be exploited · CVSS 8.2 High.

Data as of 10 Nov 2026, 23:24 UTC

CVSS 3.1 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.18.2
EPSS
0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10ipaAffected–Fixed in–
Red Hat Enterprise Linux 10.0 Extended Update SupportipaAffected–Fixed in–
Red Hat Enterprise Linux 7 Extended Lifecycle SupportipaAffected–Fixed in–
Red Hat Enterprise Linux 8idm:clientAffected–Fixed in–
Red Hat Enterprise Linux 8idm:DL1Affected–Fixed in–
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportidm:clientAffected–Fixed in–

AI-suggested

A fix is available and included in the Red Hat Enterprise Linux 9.8 update. Administrators should apply the update to remediate this vulnerability. Until the fix is applied, restricting the "System: Read Trust Information" permission can serve as an interim workaround, though this may impact SSSD subdomain support. No other mitigation steps are recommended by the vendor.

Description

CVE-2026-19550 is a medium-severity authorization vulnerability in FreeIPA on Red Hat Enterprise Linux 9. It allows an authenticated, non-privileged user to trigger a privileged Active Directory trust refresh using attacker-supplied server and credentials. This can lead to unauthorized modification of trusted-domain and ID-range identity data in the IPA LDAP directory. The vulnerability affects only IdM/FreeIPA servers with established cross-forest trusts with Active Directory. A fix is available upstream and included in Red Hat Enterprise Linux 9.8 updates.

References

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