CVE-2026-53660

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (32nd percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the default configuration initializes the iPlanetDirectoryPro SSO cookie with HttpOnly disabled and without a protective SameSite default, and OAuth and OpenID Connect consent flows reuse that cookie through CsrfProtection as a CSRF token. When combined with same-origin cross-site scripting and a user following an attacker-controlled link, the cookie can be read and reused to steal the SSO session and complete attacker-driven consent grants. This issue is fixed in version 16.1.1.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
33
EG Risk 33/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
32nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 14, 2026

Last Modified

September 23, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
Patch available. Sources: github_commit, github_release, github.
github_release Patch Available

16.1.1

Patch available: OpenIdentityPlatform/OpenAM 16.1.1

https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1
github_commit

commit 2af597267e6e (OpenIdentityPlatform/OpenAM)

Fix landed in OpenIdentityPlatform/OpenAM commit 2af597267e6e — awaiting tagged release

https://github.com/OpenIdentityPlatform/OpenAM/commit/2af597267e6eb9302f75445c2c726f9b84f62966
github Patch Available

OpenAM Insecure SSO Cookie Initialization · Advisory · OpenIdentityPlatform/OpenAM · GitHub

Affected: version 16.1.1.

https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-fpmh-vx4h-xc33

Vendor Advisories for CVE-2026-53660(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.openidentityplatform.openam:openam-core14.5.2 ... 16.1.0 (40 versions)
  • every version up to 16.1.1: fixed in 16.1.1
—

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-05 12:58 UTCEG score recompute
  2. 2026-10-04 23:22 UTCEPSS rescore
  3. 2026-10-03 19:40 UTCEG score recompute
  4. 2026-10-03 14:26 UTCEPSS rescore
  5. 2026-10-02 18:58 UTCEG score recompute
  6. 2026-10-02 17:56 UTCEPSS rescore
  7. 2026-10-02 07:19 UTCEG score recompute
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-09-30 21:39 UTCEG score recompute
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-29 15:22 UTCEPSS rescore
  12. 2026-09-29 02:53 UTCEG score recompute
  13. 2026-09-28 13:51 UTCEPSS rescore
  14. 2026-09-27 23:29 UTCEG score recompute
  15. 2026-09-27 13:48 UTCEPSS rescore
  16. 2026-09-27 09:04 UTCEG score recompute
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-25 03:22 UTCEG score recompute
  19. 2026-09-24 14:04 UTCEPSS rescore
  20. 2026-09-23 19:05 UTCEG score recompute
  21. 2026-09-23 17:54 UTCEPSS rescore
  22. 2026-09-22 21:26 UTCEG score recompute
  23. 2026-09-21 21:40 UTCEG score recompute
  24. 2026-09-20 22:30 UTCEG score recompute
  25. 2026-09-20 20:16 UTCEPSS rescore
Show 14 more
  1. 2026-09-19 23:04 UTCEG score recompute
  2. 2026-09-18 23:39 UTCEG score recompute
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 00:23 UTCEG score recompute
  5. 2026-09-17 00:15 UTCEG score recompute
  6. 2026-09-16 14:08 UTCEPSS rescore
  7. 2026-09-16 12:41 UTCEG score recompute
  8. 2026-09-16 05:15 UTCEPSS rescore
  9. 2026-09-15 13:33 UTCEG score recompute
  10. 2026-09-15 13:03 UTCEG score recompute
  11. 2026-09-15 10:28 UTCEG score recompute
  12. 2026-09-15 09:53 UTCEG score recompute▲ 7.40
  13. 2026-09-15 09:52 UTCMITRE cvelistV5CVSS v3 → 7.4 · CVSS v4 → 7.4
  14. 2026-08-14 20:25 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-53660?
CVE-2026-53660 is a high vulnerability published on August 14, 2026. Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the default configuration initializes the iPlanetDirectoryPro SSO cookie with HttpOnly disabled and without a protective SameSite default, and OAuth and OpenID Connect consent flows reuse that cookie through…
When was CVE-2026-53660 disclosed?
CVE-2026-53660 was first published on August 14, 2026, with the most recent update on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53660 actively exploited?
CVE-2026-53660 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (32nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53660?
CVE-2026-53660 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-53660?
A fix for CVE-2026-53660 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53660 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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