CVE-2026-123549 json
OpenAM before 16.1.4 Privilege Escalation via Self-Registration Attribute Bypass
published 21d ago modified yesterday also EUVD-2026-119434 , GHSA-jv8f-m88g-h6mm
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository OpenIdentityPlatform/OpenAM. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
OpenAM before 16.1.4 fails to enforce the Valid Creation Attributes list during self-registration, allowing anonymous attackers to set restricted attributes including group membership. Attackers can register through the legacy self-service REST endpoint or User Self-Service flow to join administrative groups and gain full administrative control of OpenAM.
Patch / fix
- OpenIdentityPlatform OpenAM 16.1.4
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Check with FencerExploit prediction
0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- OpenIdentityPlatform OpenAM
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
github.com
/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-jv8f-m88g-h6mm
vendor-advisory, advisory
-
vulncheck.com
/advisories/openam-before-16.1.4-privilege-escalation-via-self-registration-attribute-bypass
third-party-advisory
Sources
- CVE List CVE-2026-123549
- NVD CVE-2026-123549
- Maintainer advisory GHSA-jv8f-m88g-h6mm
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of OpenIdentityPlatform/OpenAM published their own advisory on GitHub. Reviewed sources take precedence over it.