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VulnerabilityPublished Updated

CVE-2026-19550: Red Hat Enterprise Linux 10 · Incorrect Authorization

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 8.2 High.

Data as of 9 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 9 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

Administrators of IdM/FreeIPA servers with Active Directory trusts should consider restricting the default "System: Read Trust Information" permission so it is not granted to all authenticated users. This is a suggested compensating control and should be tested carefully before applying in production environments, as it may affect legitimate read-only lookups such as SSSD subdomain support. Monitor the Red Hat advisory page for updates on official fixes or patches.

Description

A flaw was found in FreeIPA. The trust-fetch-domains command is gated by a read-only permission on the trust object rather than a trust-administration permission, allowing an authenticated, non-privileged IPA user to trigger a privileged Active Directory trust refresh using an attacker-supplied server and credentials, resulting in unauthorized, attacker-controlled modification of trusted-domain and ID-range identity data in the IPA LDAP directory.

References

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