CVE-2023-45810

highpriority · track · 30EPSS 0.006 · 49 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.61% (49th) EPSS

CVSS 7.5 · high

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.3–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.15.3mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · security-advisories@github.comexploitability 1.6 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USprimaryCWE-400US

affected products (3)

Products and version ranges known to be affected.

openfga openfga≤ < 1.3.4enisa_euvdEU
openfga openfga< 1.3.4nvdUScpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:*
Go github.com/openfga/openfga< 1.3.4osvUSpkg:golang/github.com/openfga/openfga

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-hr4f-6jh8-f2vqOpenFGA DoS vulnerability2023-10-18ghsa · osvUS
## Overview OpenFGA is vulnerable to a DoS 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 the service as a whole becomes unresponsive. ## Fix Upgrade to v1.3.4. This upgrade is backwards compatible.
GO-2023-2121OpenFGA DoS vulnerability in github.com/openfga/openfga2024-08-21vendor · osvUS
OpenFGA DoS vulnerability in github.com/openfga/openfga

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2023-10-17modified 2026-06-17

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references (4)

External citations — patches, advisories, analysis.

scry

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