by Kastro
Paper/Archive/CVE-2024-42473

CVE-2024-42473

openfga openfga — OpenFGA Authorization Bypass

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
38
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 44.6.446 × 208.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
openfga>=1.5.7, <= 1.5.8–CNA
openfga1.5.7 – 1.5.8–CISA-ADP

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_M (CNA)7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refgithub.com/openfga/openfga/security/advisories/GHSA-3f6g-m4hr-59h8