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.
CVE-2026-33729
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 85% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 44(Track)EG Risk 44/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity98% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 15.3%
- KEV
- Not listed
Published
March 27, 2026
Last Modified
April 14, 2026
Advisory Details (3)
Auto-updated May 18, 2026OpenFGA Improper Policy Enforcement · Advisory · openfga/openfga · GitHub
https://github.com/openfga/openfga/security/advisories/GHSA-h6c8-cww8-35hfRelease v1.13.1 · openfga/openfga · GitHub
https://github.com/openfga/openfga/releases/tag/v1.13.1Merge commit from fork · openfga/openfga@049b50c · GitHub
https://github.com/openfga/openfga/commit/049b50ccd2cc7e163bd897f3d17a7b859ad146f8Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/openfga/openfga | — | 1.13.1 | — |
Data Freshness Timeline
(refreshed 10× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 14:18 UTCEPSS rescore
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- 2026-07-23 03:09 UTCEG score recompute
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- 2026-07-05 02:30 UTCEPSS rescore
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- 2026-06-01 06:13 UTCOSV refresh
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- 2026-05-20 20:06 UTCEG score recompute
- 2026-05-20 11:22 UTCEPSS rescore
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- 2026-05-20 01:03 UTCOSV refresh
Frequently asked(5)
What is CVE-2026-33729?
When was CVE-2026-33729 disclosed?
Is CVE-2026-33729 actively exploited?
What is the CVSS score of CVE-2026-33729?
How do I remediate CVE-2026-33729?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-33729
Is Your Infrastructure Affected by CVE-2026-33729?
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