GHSA-cf98-j28v-49v6Published

OpenFGA MySQL backend: case-insensitive collation on identifier columns causes incorrect authorization decisions

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cve-program · CVE-2026-55170

Published

OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, when MySQL is being used as the datastore and authorization decisions rely on case-sensitive user strings, the tuple, changelog, and authorization_model identifier columns can compare case-distinct values such as user:Alice and user:alice as equivalent, causing two distinct check requests to return the same response. This issue is fixed in 1.18.0.

Source published: 9 Jul 2026 21:04:28 UTC
Source modified: 10 Jul 2026 14:26:15 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

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CVSS 4.0 · 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

euvd · EUVD-2026-42705

Published

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datePublished: Jul 9, 2026, 9:04:28 PM

dateUpdated: Jul 10, 2026, 2:26:15 PM

Source published: Jul 9, 2026, 9:04:28 PM (timezone not stated)
Source modified: Jul 10, 2026, 2:26:15 PM (timezone not stated)
Saved here: 13 Nov 2026 15:03:10 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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EUVD CVSS 4.0 · 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

nvd · CVE-2026-55170

Published

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NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-178

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published: 2026-07-09T22:17:05.937

lastModified: 2026-07-14T01:22:35.620

2 source CPE criteria · context only

cpe:2.3:a:openfga:helm_charts:*:*:*:*:*:openfga:*:*
cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 9 Jul 2026 22:17:05 UTC
Source modified: 14 Jul 2026 01:22:35 UTC
Saved here: 25 Oct 2026 13:17:34 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · [email protected] · Secondary · 2.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS 3.1 · [email protected] · Primary · 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

osv · GHSA-cf98-j28v-49v6

Published

## Description In OpenFGA, when MySQL is being used as the datastore, two distinct check requests can return the same response. ## Preconditions This applies if the following preconditions are met: 1. You run OpenFGA with MySQL as the datastore 2. Your authorization decisions rely on case-sensitive user strings. ## Fix Upgrade to OpenFGA 1.18.0 or greater. ## Acknowledgements OpenFGA would like to thank @sahajamoth for the detailed report.

Source published: 18 Jun 2026 15:05:30 UTC
Source modified: 10 Sep 2026 03:51:08 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

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Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS_V4 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Publisher rating · LOW

osv · GO-2026-5322

Published

OpenFGA Improper Policy Enforcement in github.com/openfga/openfga

Source published: 25 Jun 2026 18:43:19 UTC
Source modified: 25 Jun 2026 19:45:28 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.