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MEDIUM

CVE-2026-19550

CVSS v3

4.3

MEDIUM

EPSS Score

0.4 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • bind-dyndb-ldapAlmaLinux:8all versions · fixed in 11.6-6.module_el8.10.0+3980+d78e8e90
  • custodiaAlmaLinux:8all versions · fixed in 0.6.0-3.module_el8.6.0+2881+2f24dc92and 1 other package
  • ipa-clientAlmaLinux:10all versions · fixed in 4.13.4-1.el10_2and 17 other packages
  • ipa-clientAlmaLinux:9all versions · fixed in 4.13.4-1.el9_8and 17 other packages
  • ipa-clientAlmaLinux:8all versions · fixed in 4.9.13-21.module_el8.10.0+4302+2d2000af.3and 14 other packages
  • ipa-healthcheckAlmaLinux:8all versions · fixed in 0.12-6.module_el8.10.0+4036+84b152d9and 1 other package
  • opendnssecAlmaLinux:8all versions · fixed in 2.1.7-2.module_el8.10.0+3980+d78e8e90
  • python3-jwcryptoAlmaLinux:8all versions · fixed in 0.5.0-2.module_el8.10.0+3844+20e075e5

6 more package ranges on OSV.dev

Vendor advisories

  • CVE-2026-19550 Red Hat Product Security691 products fixed · 14 known affected

    freeipa: ipa: FreeIPA: trust-fetch-domains uses trust-read ACI to gate a privileged AD trust refresh, allowing unauthorized LDAP writes

    ipa-admintools as a component of Red Hat Enterprise Linux 7 · ipa-client as a component of Red Hat Enterprise Linux 7 · ipa-client-common as a component of Red Hat Enterprise Linux 7

  • RHSA-2026:83460 Red Hat Product Security166 products fixed

    Red Hat Security Advisory: idm:DL1 security, bug fix, and enhancement update

  • RHSA-2026:83461 Red Hat Product Security187 products fixed

    Red Hat Security Advisory: idm:DL1 security, bug fix, and enhancement update

  • RHSA-2026:83085 Red Hat Product Security49 products fixed

    Red Hat Security Advisory: ipa security, bug fix, and enhancement update

  • RHSA-2026:83084 Red Hat Product Security49 products fixed

    Red Hat Security Advisory: ipa security update

  • RHSA-2026:83083 Red Hat Product Security60 products fixed

    Red Hat Security Advisory: ipa security update

3 more advisories

Full record on NVD

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.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Published
2026-08-11
Last Modified
2026-08-12

Frequently asked questions

What is CVE-2026-19550?

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.

Is CVE-2026-19550 actively exploited?

Active exploitation of CVE-2026-19550 has not been confirmed. Its EPSS score was 0.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-19550?

CVE-2026-19550 has a CVSS v3 base score of 4.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N.

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