CVE-2026-33729CWE-1289CWE-20CWE-345

OpenFGA has an Authorization Bypass through cached keys

Medium · published March 27, 2026

CVSS v4.0
5.8
EPSS
0%
Percentile
22.2
In the wild
Unconfirmed
What it is

OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. In versions prior to 1.13.1, under specific conditions, models using conditions with caching enabled can result in two different check requests producing the same cache key. This can result in OpenFGA reusing an earlier cached result for a different request. Users are affected if the model has relations which rely on condition evaluation andncaching is enabled. OpenFGA v1.13.1 contains a patch.

The record
Technical detail
CVSS v4.0
5.8 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
EPSS
0.00306 · 22.2th percentile
Weaknesses
CWE-1289 · Improper Validation of Unsafe Equivalence in Input; CWE-20 · Improper Input Validation; CWE-345 · Insufficient Verification of Data Authenticity
Published
2026-03-27T00:27Z
EPSS history
Timeline
  • 27 MAR 00:27Z
    OpenFGA has an Authorization Bypass through cached keys
    cvelistv5