OpenFGA: Cache-key delimiter injection in openfga/openfga shared-iterator and v2 iterator caches enables intra-store authorization-decision poisoning

Description

OpenFGA is an authorization/permission engine built for developers. Prior to version 1.16.0, when iterator caching is enabled, two distinct check requests can produce the same cache key, leading to OpenFGA reusing an earlier cached result for a subsequent request. This issue has been patched in version 1.16.0.

Scores

EPSS (exploitation in 30 days)

0.10% · top 99% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

• CWE-345: Insufficient Verification of Data Authenticity (opens in a new tab)All about CWE-345 and its CVEs
• CWE-668: Exposure of Resource to Wrong Sphere (opens in a new tab)All about CWE-668 and its CVEs

Affected products

• openfga · openfga

  • affected < 1.16.0

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Gogithub.com/openfga/openfgaGHSA-8396-jffm-qx4w (opens in a new tab)

References (2)

• https://github.com/openfga/openfga/security/advisories/GHSA-8396-jffm-qx4w (opens in a new tab)x_refsource_CONFIRM
• https://github.com/openfga/openfga/releases/tag/v1.16.0 (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-8396-jffm-qx4w (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-48096](https://trackcve.app/badge/CVE-2026-48096.svg)](https://trackcve.app/cve/CVE-2026-48096)

Record last updated 10 Jun 2026, 19:41 UTC.