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  4. CVE 2026 45049 openam session hijacking via cdsso
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High · CVSS 8.3CVE-2026-45049GHSA-R9PV-5RPP-VM8G

OpenAM Session Hijacking via CDSSOCVE-2026-45049

Answer in brief

CVE-2026-45049 records a High severity (CVSS 8.3) vulnerability in OpenAM Session Hijacking via CDSSO. The current sources do not mark it as known exploited. The current feed maps OpenIdentityPlatform/OpenAM (generic), org.openidentityplatform.openam:openam-federation (maven), org.openidentityplatform.openam:openam-federation (maven). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 29, 2026Updated Oct 29, 2026Source checked Oct 29, 2026First seen by HOL Jun 23, 2026Material review Oct 29, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.3
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps OpenIdentityPlatform/OpenAM (generic), org.openidentityplatform.openam:openam-federation (maven), org.openidentityplatform.openam:openam-federation (maven). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
OpenIdentityPlatform/OpenAMgeneric<16.1.116.1.1
org.openidentityplatform.openam:openam-federationmaven<=16.0.616.1.1
org.openidentityplatform.openam:openam-federationmaven>=0 <16.1.116.1.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for OpenIdentityPlatform/OpenAM, org.openidentityplatform.openam:openam-federation, org.openidentityplatform.openam:openam-federation.
  2. 2Review the reported fix. Update OpenIdentityPlatform/OpenAM to 16.1.1; org.openidentityplatform.openam:openam-federation to 16.1.1; org.openidentityplatform.openam:openam-federation to 16.1.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jun 23, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
CWE-201
Source
CVE List V5
Source checked
Oct 29, 2026
References
5 linked sources
Open source record