CVE-2026-6266

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-05-04. NVD baseline CVSS 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.3Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in the AAP gateway. The user auto-link strategy, introduced in AAP 2.6, automatically links an external Identity Provider (IDP) identity to an existing AAP user account based on email matching without verifying email ownership. This allows a remote attacker to potentially hijack a victim's account or gain unauthorized access to other accounts, including administrative accounts, by manipulating the IDP-provided email.

CVSS v3
8.3
EG Score
8.3(medium)
EPSS
32.0%
KEV
Not listed

Published

May 4, 2026

Last Modified

July 15, 2026

Advisory Details (3)

Auto-updated May 4, 2026
Patch available. Sources: redhat.
redhat Patch Available

2458142 – (CVE-2026-6266) CVE-2026-6266 aap-controller: aap-gateway: Account hijacking and unauthorized access via unverified email linking

https://bugzilla.redhat.com/show_bug.cgi?id=2458142
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-6266
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:13508

Vendor Advisories for CVE-2026-6266(4)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatpython3.12-django-ansible-base-0:2.5.20260422-2.el9ap2026-05-04redhat
redhatpython3.12-django-ansible-base-0:2.6.20260422-1.el9ap2026-05-04redhat
redhatansible-automation-platform-26/gateway-rhel9:17773111202026-05-04redhat

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 45× 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 150 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-6266?
CVE-2026-6266 is a high vulnerability published on May 4, 2026. A flaw was found in the AAP gateway. The user auto-link strategy, introduced in AAP 2.6, automatically links an external Identity Provider (IDP) identity to an existing AAP user account based on email matching without verifying email ownership. This allows a remote attacker to potentially hijack a…
When was CVE-2026-6266 disclosed?
CVE-2026-6266 was first published in the National Vulnerability Database on May 4, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6266 actively exploited?
CVE-2026-6266 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-6266?
CVE-2026-6266 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2026-6266?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6266, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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