CVE-2026-44793

OpenAM: Pre-authentication Reflected XSS in SAML2 Cluster Cookie-Hash-Redirect Path via `FSUtils.postToTarget`

Published Sep 15, 2026 CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed
Description
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, certain federation endpoints in a non-default clustered configuration inconsistently encode user-supplied parameters rendered into HTML in the SAML2 cluster cookie-hash redirect path. An unauthenticated attacker can induce a user to follow a crafted request and execute script in the OpenAM origin. This issue is fixed in version 16.1.1.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-fhrq-3gmx-p879 OpenAM SAML2 Cluster Cookie-Hash-Redirect Path has Pre-authentication Reflected XSS via `FSUtils.postToTarget`
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Openidentityplatform
Openidentityplatform openam
Vendors & Products Openidentityplatform
Openidentityplatform openam
Type Values Removed Values Added
Description Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, certain federation endpoints in a non-default clustered configuration inconsistently encode user-supplied parameters rendered into HTML in the SAML2 cluster cookie-hash redirect path. An unauthenticated attacker can induce a user to follow a crafted request and execute script in the OpenAM origin. This issue is fixed in version 16.1.1.
Title OpenAM: Pre-authentication Reflected XSS in SAML2 Cluster Cookie-Hash-Redirect Path via `FSUtils.postToTarget`
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 15, 2026, 1:53 PM
Reserved
May 7, 2026, 7:20 PM
Status
Awaiting Analysis
Published
Sep 15, 2026, 10:17 AM
Modified
Sep 23, 2026, 6:21 PM