CVE-2026-87251: Oracle Access Manager authentication bypass in SAML

CVE-2026-87251 · Severity: critical · CVSS 9.8 · Published 2026-10-20

Oracle Access Manager is an authentication and authorization system used to protect enterprise applications and networks. An unauthenticated attacker can exploit a flaw in the SAML authentication engine to completely compromise the system, gaining full access to protected resources and the ability to impersonate legitimate users.

Technologies: Oracle Access Manager. Vendors: Oracle.

Quick answers

Is CVE-2026-87251 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-87251 being exploited in the wild.
How severe is CVE-2026-87251?
Critical severity, with a CVSS score of 9.8, published 20 October 2026.
Which products and versions are affected?
Oracle Access Manager 12.2.1.4.0, 14.1.2.1.0.
Is there a fix for CVE-2026-87251?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-87251 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-87251?
Check whether you run Oracle Access Manager at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an easily exploitable authentication bypass in Oracle Access Manager's SAML authentication engine accessible via the network without credentials. An unauthenticated attacker can exploit this flaw to achieve full system compromise including unauthorized access, data manipulation, and denial of service. Affected versions are 12.2.1.4.0 and 14.1.2.1.0.

Affected products

  • Oracle Access Manager 12.2.1.4.0, 14.1.2.1.0

Timeline

  • 2026-10-20: disclosed

References

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