CVE-2026-18147

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-09. A secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
8.1
EG Score
8.1HIGHhigh confidence
EG Risk
37
EG Risk 37/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
24th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 9, 2026

Last Modified

September 28, 2026

Advisory Details (2)

Auto-updated Sep 9, 2026
Patch available. Sources: redhat.
redhat

2508181 – (CVE-2026-18147) CVE-2026-18147 freeipa: ipa: FreeIPA/IdM: Cross-Site Scripting vulnerability allows arbitrary code execution via crafted URL

https://bugzilla.redhat.com/show_bug.cgi?id=2508181
redhat Patch Available

CVE-2026-18147 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-18147

Vendor Advisories for CVE-2026-18147(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatipa-0:4.13.4-1.el10_22026-09-28redhat
redhatipa-0:4.13.4-1.el9_82026-09-24redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 2 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
freeipa4.10.1+dfsg1-1+exp1 ... 4.9.11-2 (19 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
freeipa4.12.4-1, 4.12.4-2, 4.13.1-1
  • every version on: no fix on record
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 39× in last 7d / 127× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 127 total refreshes for this CVE.

  1. 2026-10-05 03:55 UTCEG score recompute
  2. 2026-10-05 03:55 UTCVendor advisory
  3. 2026-10-05 03:55 UTCGHSA enrichment
  4. 2026-10-04 23:21 UTCEPSS rescore
  5. 2026-10-04 15:56 UTCVendor advisory
  6. 2026-10-04 15:56 UTCGHSA enrichment
  7. 2026-10-04 03:59 UTCVendor advisory
  8. 2026-10-04 03:59 UTCGHSA enrichment
  9. 2026-10-03 15:54 UTCEG score recompute
  10. 2026-10-03 15:54 UTCVendor advisory
  11. 2026-10-03 15:53 UTCGHSA enrichment
  12. 2026-10-03 14:25 UTCEPSS rescore
  13. 2026-10-03 03:26 UTCEG score recompute
  14. 2026-10-03 03:26 UTCVendor advisory
  15. 2026-10-03 03:26 UTCGHSA enrichment
  16. 2026-10-02 15:28 UTCVendor advisory
  17. 2026-10-02 15:28 UTCGHSA enrichment
  18. 2026-10-02 03:28 UTCEG score recompute
  19. 2026-10-02 03:28 UTCVendor advisory
  20. 2026-10-02 03:28 UTCGHSA enrichment
  21. 2026-10-01 19:49 UTCEPSS rescore
  22. 2026-10-01 14:06 UTCVendor advisory
  23. 2026-10-01 14:06 UTCGHSA enrichment
  24. 2026-10-01 02:08 UTCEG score recompute
  25. 2026-10-01 02:08 UTCVendor advisory
Show 75 more
  1. 2026-10-01 02:08 UTCGHSA enrichment
  2. 2026-09-30 15:02 UTCEPSS rescore
  3. 2026-09-30 14:05 UTCVendor advisory
  4. 2026-09-30 14:05 UTCGHSA enrichment
  5. 2026-09-30 02:01 UTCEG score recompute
  6. 2026-09-30 02:01 UTCVendor advisory
  7. 2026-09-30 02:01 UTCGHSA enrichment
  8. 2026-09-29 15:20 UTCEPSS rescore
  9. 2026-09-29 10:54 UTCVendor advisory
  10. 2026-09-29 10:54 UTCGHSA enrichment
  11. 2026-09-28 22:35 UTCEG score recompute
  12. 2026-09-28 22:35 UTCVendor advisory
  13. 2026-09-28 22:35 UTCGHSA enrichment
  14. 2026-09-28 13:51 UTCEPSS rescore
  15. 2026-09-28 10:38 UTCEG score recompute
  16. 2026-09-28 10:38 UTCVendor advisory
  17. 2026-09-28 10:37 UTCGHSA enrichment
  18. 2026-09-28 09:42 UTCEG score recompute
  19. 2026-09-28 09:42 UTCVendor advisory
  20. 2026-09-28 09:42 UTCGHSA enrichment
  21. 2026-09-28 04:17 UTCVendor advisory
  22. 2026-09-28 04:17 UTCGHSA enrichment
  23. 2026-09-27 16:18 UTCEG score recompute
  24. 2026-09-27 16:18 UTCVendor advisory
  25. 2026-09-27 16:18 UTCGHSA enrichment
  26. 2026-09-27 13:47 UTCEPSS rescore
  27. 2026-09-27 04:21 UTCVendor advisory
  28. 2026-09-27 04:21 UTCGHSA enrichment
  29. 2026-09-26 16:23 UTCEG score recompute
  30. 2026-09-26 16:23 UTCVendor advisory
  31. 2026-09-26 16:23 UTCGHSA enrichment
  32. 2026-09-26 15:58 UTCEPSS rescore
  33. 2026-09-26 04:18 UTCEG score recompute
  34. 2026-09-26 04:18 UTCVendor advisory
  35. 2026-09-26 04:17 UTCGHSA enrichment
  36. 2026-09-25 16:18 UTCVendor advisory
  37. 2026-09-25 16:18 UTCGHSA enrichment
  38. 2026-09-25 04:18 UTCVendor advisory
  39. 2026-09-25 04:18 UTCGHSA enrichment
  40. 2026-09-24 16:20 UTCEG score recompute
  41. 2026-09-24 16:20 UTCVendor advisory
  42. 2026-09-24 16:20 UTCGHSA enrichment
  43. 2026-09-24 04:22 UTCEG score recompute
  44. 2026-09-24 04:22 UTCGHSA enrichment
  45. 2026-09-24 03:26 UTCEG score recompute
  46. 2026-09-24 03:26 UTCGHSA enrichment
  47. 2026-09-24 02:50 UTCGHSA enrichment
  48. 2026-09-23 14:52 UTCEG score recompute
  49. 2026-09-23 14:52 UTCGHSA enrichment
  50. 2026-09-23 02:55 UTCGHSA enrichment
  51. 2026-09-22 14:57 UTCEG score recompute
  52. 2026-09-22 14:57 UTCGHSA enrichment
  53. 2026-09-22 02:59 UTCEG score recompute
  54. 2026-09-22 02:59 UTCGHSA enrichment
  55. 2026-09-21 15:01 UTCGHSA enrichment
  56. 2026-09-21 02:42 UTCEG score recompute
  57. 2026-09-21 02:42 UTCGHSA enrichment
  58. 2026-09-20 14:44 UTCGHSA enrichment
  59. 2026-09-20 02:46 UTCEG score recompute
  60. 2026-09-20 02:46 UTCGHSA enrichment
  61. 2026-09-19 14:48 UTCGHSA enrichment
  62. 2026-09-19 02:50 UTCEG score recompute
  63. 2026-09-19 02:50 UTCGHSA enrichment
  64. 2026-09-18 19:27 UTCEPSS rescore
  65. 2026-09-18 14:52 UTCGHSA enrichment
  66. 2026-09-18 02:54 UTCEG score recompute
  67. 2026-09-18 02:54 UTCGHSA enrichment
  68. 2026-09-17 14:56 UTCGHSA enrichment
  69. 2026-09-17 02:58 UTCGHSA enrichment
  70. 2026-09-16 15:00 UTCEG score recompute
  71. 2026-09-16 15:00 UTCGHSA enrichment
  72. 2026-09-16 14:07 UTCEPSS rescore
  73. 2026-09-16 05:14 UTCEPSS rescore
  74. 2026-09-16 03:02 UTCGHSA enrichment
  75. 2026-09-15 15:04 UTCEG score recompute

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-18147?
CVE-2026-18147 is a high vulnerability published on September 9, 2026. 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…
When was CVE-2026-18147 disclosed?
CVE-2026-18147 was first published on September 9, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18147 actively exploited?
CVE-2026-18147 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (24th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18147?
CVE-2026-18147 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18147?
A fix for CVE-2026-18147 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-18147 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-18147

Explore →

Is Your Infrastructure Affected by CVE-2026-18147?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs