TI-2023-24571 Aliases CVE-2023-45810 GHSA-hr4f-6jh8-f2vq

OpenFGA denial of service

LOW 34CWE-400Published 2023-10-17 · Updated 2024-09-13

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

OpenFGA is a flexible authorization/permission engine built for developers and inspired by Google Zanzibar. Affected versions of OpenFGA are vulnerable to a denial of service attack. When a number of `ListObjects` calls are executed, in some scenarios, those calls are not releasing resources even after a response has been sent, and given a sufficient call volume the service as a whole becomes unresponsive. This issue has been addressed in version 1.3.4 and the upgrade is considered backwards compatible. There are no known workarounds for this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00608 49th percentileScored 2026-11-07

Fix Fixed openfga (openfga): 1.3.4github.com/openfga/openfga (Go): 1.3.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
openfga	openfga	before 1.3.4	1.3.4	Patch available	CNA
—	github.com/openfga/openfga (Go)	before 1.3.4	1.3.4	Patch available	GHSA-hr4f-6jh8-f2vq

openfga Vendoropenfga Affected before 1.3.4 Fixed in 1.3.4 Patch available CNA
github.com/openfga/openfga (Go) Vendor— Affected before 1.3.4 Fixed in 1.3.4 Patch available GHSA-hr4f-6jh8-f2vq

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:openfga:openfga::::::::	before 1.3.4	Vulnerable	openfga

cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:* Versions before 1.3.4 Vulnerable ·openfga

Remediation

Fix · CNA openfga (openfga) Fixed in 1.3.4
Fix · GHSA-hr4f-6jh8-f2vq github.com/openfga/openfga (Go) Fixed in 1.3.4 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2023-45810
2026-10-03 Alias added: GHSA-hr4f-6jh8-f2vq

References

Advisory 2

Other 2

TI-2023-17995 OpenFGA denial of service die to circular relationship CVSS 3.1HIGH 7.5
TI-2024-28441 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8
TI-2022-07597 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8
TI-2024-20816 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8
TI-2022-18717 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8
TI-2022-18716 OpenFGA Authorization Bypass CVSS 3.1CRITICAL 9.8

See all 25 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences