CVE-2026-123548 json
OpenAM before 16.1.4 Open Redirect via WS-Federation and SAML v2.0 Pages
published 21d ago modified yesterday also EUVD-2026-119433 , GHSA-mgwg-24cx-c8w3
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
- 4.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
OpenIdentityPlatform OpenAM before 16.1.4 contains an open redirect because WS-Federation logout, SAML v2.0 logout and name-identifier management, SAML v2.0 identity provider finder, and some authentication pages do not check destination URLs against allowed lists. Attackers can craft OpenAM-domain links that send users to arbitrary external sites for phishing.
Patch / fix
- OpenIdentityPlatform OpenAM 16.1.4
Is CVE-2026-123548 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.3 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N |
| CNA | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA | 4.0 | 2.3 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/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 | 4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- OpenIdentityPlatform OpenAM
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
References
-
github.com
/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-mgwg-24cx-c8w3
vendor-advisory, advisory
-
vulncheck.com
/advisories/openam-before-16.1.4-open-redirect-via-ws-federation-and-saml-2.0-pages
third-party-advisory
Sources
- CVE List CVE-2026-123548
- NVD CVE-2026-123548
- Maintainer advisory GHSA-mgwg-24cx-c8w3
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.