CVE-2026-19550: Red Hat Enterprise Linux 10 · Incorrect Authorization
Affects Red Hat Enterprise Linux 10Source CVE Database V5
Not known to be exploited · CVSS 8.2 High.
Data as of 9 Nov 2026, 23:24 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 8.2 |
|---|
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10ipa | Affected– | Fixed in– |
| Red Hat Enterprise Linux 10.0 Extended Update Supportipa | Affected– | Fixed in– |
| Red Hat Enterprise Linux 7 Extended Lifecycle Supportipa | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8idm:client | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8idm:DL1 | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportidm:client | Affected– | 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
- access.redhat.com/security/cve/CVE-2026-19550 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2514019 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:70564 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:72279 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82935 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:83083 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:83085 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:83084 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:83460 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:83461 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:89836 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:93071 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:93452 (opens in a new tab)