CVE-2026-53660CWE-1004CWE-1188CWE-1275

CVE-2026-53660

published September 15, 2026

CVSS
7.4
EPSS
0%
Percentile
34.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
7.4 · NONE
CVSS v4.0
7.4 · CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00409 · 34.0th percentile
Weaknesses
CWE-1004 · Sensitive Cookie Without 'HttpOnly' Flag; CWE-1188 · Initialization of a Resource with an Insecure Default; CWE-1275 · Sensitive Cookie with Improper SameSite Attribute
Published
2026-09-15T14:17Z
References (3)
EPSS history
Timeline
  • 16 SEP 04:28Z
    EPSS moved — → 0%
    epss
  • 15 SEP 09:45Z
    OpenAM Insecure SSO Cookie Initialization
    cvelistv5