CVE•Published 2026-03-27•Modified 2026-04-14•1 article on news•6 live references•NVD data

CVE-2026-33729Openfga · Openfga

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

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Weaknesses (CWE)

CWE-20Improper Input Validation CWE-345Insufficient Verification of Data Authenticity CWE-1289Improper Validation of Unsafe Equivalence in Input

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.

Timeline

Published 2026-03-27

Modified 2026-04-14

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-33729

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Openfga Openfga"

All exposed Openfga Openfga instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Openfga"

HTTP body or banner mentions "Openfga" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-33729