CVE-2026-40293: openfga
Vulnerability summary
CVE-2026-40293 is a medium (CVSS 6.5) vulnerability in openfga. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 2Timeline
- 17-04-2026PublishedVulnerability first disclosed.
- 09-09-2026Last modifiedVulnerability information updated.
Description
OpenFGA is an authorization/permission engine built for developers. In versions 0.1.4 through 1.13.1, when OpenFGA is configured to use preshared-key authentication with the built-in playground enabled, the local server includes the preshared API key in the HTML response of the /playground endpoint. The /playground endpoint is enabled by default and does not require authentication. It is intended for local development and debugging and is not designed to be exposed to production environments. Only those who run OpenFGA with `--authn-method` preshared, with the playground enabled, and with the playground endpoint accessible beyond localhost or trusted networks are vulnerable. To remediate the issue, users should upgrade to OpenFGA v1.14.0, or disable the playground by running `./openfga run --playground-enabled=false.`
CVSS metrics
5 scores · 5 sources · 1 version- OSV · WolfiEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · GoEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
+0.21 pp
From 0.29% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-201Insertion of Sensitive Information Into Sent DataThe code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.
Affected systems
Chainguard18 products
- commercial-grafana-11.6All versions (No fix recorded)
- commercial-grafana-12.1All versions (No fix recorded)
- commercial-grafana-12.2< 12.2.10-r0
- commercial-grafana-12.3< 12.3.8-r0
- commercial-grafana-12.4< 12.4.5-r0
Wolfi2 products
- grafana-12.3< 12.3.6-r2
- openfga< 1.14.2-r0
Github.com/openfga1 product
- openfga≥ 0.1.4, < 1.14.0
Openfga1 product
- openfga≥ 0.1.4, < 1.14.0
4 vendors · 22 products
References
11 links- github.com/openfga/openfga/security/advisories/GHSA-68m9-983m-f3v5X Refsource CONFIRMAdvisoryWEBMitigationVendor Advisory
Show all 11 references
- github.com/openfga/openfgaPACKAGE