Skip to content
OpenAdvisories
Medium · 5.8 CVE-2026-33729 EUVD-2026-16507GHSA-h6c8-cww8-35hfGO-2026-4857

OpenFGA has an Authorization Bypass through cached keys

Published Mar 27, 2026 · Updated Mar 30, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
openfga openfga < 1.13.1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1
openSUSE Leap 15.6 govulncheck-vulndb 0.0.20260326T203309-150000.1.155.2 SUSE-SU-2026:1135-1

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling grafana-12.3 12.3.6-r2 —
Wolfi rolling grafana-12.4 12.4.2-r1 —

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/openfga/openfga < 1.13.1 1.13.1 GHSA-h6c8-cww8-35hf

Advisories 2

References