How severe is CVE-2024-42473?

CVE-2024-42473 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2024-42473 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-42473?

CVE-2024-42473 primarily affects Openfga. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-42473?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-42473 have an EU (EUVD) identifier?

Yes. CVE-2024-42473 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2475.

When was CVE-2024-42473 published?

CVE-2024-42473 was published on 2024-08-12 and last updated on 2026-06-17.

CVE-2024-42473

CVE-2024-42473 is a high-severity vulnerability in Openfga with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-2475
Weakness: CWE-863
Affected product: Openfga
Published: 2024-08-12
Last modified: 2026-06-17

Description

OpenFGA is an authorization/permission engine. OpenFGA v1.5.7 and v1.5.8 are vulnerable to authorization bypass when calling Check API with a model that uses `but not` and `from` expressions and a userset. Users should downgrade to v1.5.6 as soon as possible. This downgrade is backward compatible. As of time of publication, a patch is not available but OpenFGA's maintainers are planning a patch for inclusion in a future release.

Frequently asked questions

What is CVE-2024-42473?: OpenFGA is an authorization/permission engine. OpenFGA v1.5.7 and v1.5.8 are vulnerable to authorization bypass when calling Check API with a model that uses `but not` and `from` expressions and a userset. Users should downgrade to v1.5.6 as soon as possible. This downgrade is backward compatible. As of time of publication, a patch is not available but OpenFGA's maintainers are planning a patch for inclusion in a future release.
How severe is CVE-2024-42473?: CVE-2024-42473 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2024-42473 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-42473?: CVE-2024-42473 primarily affects Openfga. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-42473?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-42473 have an EU (EUVD) identifier?: Yes. CVE-2024-42473 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2475.
When was CVE-2024-42473 published?: CVE-2024-42473 was published on 2024-08-12 and last updated on 2026-06-17.

References

https://github.com/openfga/openfga/security/advisories/GHSA-3f6g-m4hr-59h8

Affected products (2)

cpe:2.3:a:openfga:openfga:1.5.7:*:*:*:*:*:*:*
cpe:2.3:a:openfga:openfga:1.5.8:*:*:*:*:*:*:*

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