Cross-Site Scripting Vulnerability in FreeIPA Web UI by Red Hat
CVE-2026-18147

8.1HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Vendor
CVE Published:
9 September 2026

What is CVE-2026-18147?

A flaw exists in the FreeIPA Web UI that allows unauthenticated remote attackers to exploit a DOM-based Cross-Site Scripting (XSS) vulnerability, particularly on the password reset page. By enticing a victim to engage with a specially crafted link, attackers can conduct actions like executing arbitrary JavaScript code within the context of the victim's authenticated session. This poses a significant risk, especially if it targets an Identity Management (IdM) administrator, potentially granting the attacker extensive control over the system.

Affected Version(s)

Red Hat Enterprise Linux 10 0:4.13.4-1.el10_2

Red Hat Enterprise Linux 10.0 Extended Update Support 0:4.12.2-15.el10_0.7

Red Hat Enterprise Linux 8 8100020261007071200.143e9e98

References

https://access.redhat.com/errata/RHSA-2026:70564
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72279
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:82935
vendor-advisoryx_refsource_REDHAT

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Todd Cullum (Red Hat).
.