- Description
- OpenAM before 16.1.4 contains an authentication bypass vulnerability in its SAML v2.0 service provider that accepts unsigned assertions on the ECP (PAOS) and HTTP-Artifact bindings when WantAssertionsSigned is false. Unauthenticated remote attackers can submit forged assertions to obtain sessions as any mapped user, including administrators, and hijack single sign-on to dependent applications.
- Source
- disclosure@vulncheck.com
- NVD status
- Received
CVSS 4.0
- Type
- Secondary
- Base score
- 9.3
- Impact score
- -
- Exploitability score
- -
- Vector string
- 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
- Severity
- CRITICAL
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
- disclosure@vulncheck.com
- CWE-290
- Hype score
- Not currently trending
CVE-2026-123550 (CRITICAL / 9.8) — OpenAM before 16.1.4 contains an authentication bypass vulnerability in its SAML v2.0 service provider that accepts unsi... https://t.co/TKkgGxKAP5 #server #web #cve #kkaasolutions
@kkaasolutions
8 Nov 2026
23 Impressions
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🚨 CRITICAL OpenAM — CVSS 10.0 & 9.8CVE-2026-123551 session token theft (10.0)CVE-2026-123550 SAML auth bypass (9.8)Both unauthenticated, network-reachable.Attackers can hijack any active session.Upgrade to OpenAM 16.1.4+#CVE #IAM #cybersecurity
@ICHI_Global
8 Nov 2026
8 Impressions
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🆕 New CVE: CVE-2026-123550 (CVSS 9.8, Enclave score 5/10) OpenIdentityPlatform OpenAM · Authentication bypass Remote, no login needed. OpenAM before 16.1.4 contains an authentication bypass vulnerability in its SAML v2.0 service provider that accepts… https://t.co/imgdArI
@EnclaveRadar
8 Nov 2026
70 Impressions
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🔴 Critical · Patched OpenAM before 16.1.4: unauthenticated session-token theft, unsigned SAML assertions and self-registration admin takeover CVE-2026-123551, CVE-2026-123550 +16 more Fixed in: OpenAM 16.1.4 https://t.co/JixsgaprQr
@pwnwatch_app
8 Nov 2026
28 Impressions
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