Vulnerability · Published Sep 21, 2026 · Assigned by GitHub_M

CVE-2026-55563Feast: `pull_request_target` integration tests run untrusted fork code with production cloud secrets; the `ok-to-test` label guard is bypassable via label persistence on `synchronize`

High 8.9

In plain English

A high-severity incorrect authorization in feast from feast-dev. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 4.0)8.9High

Exploit odds (30 days)0.5%top 57.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Feast is the open source feature store for AI and machine learning. Prior to 0.65.0, .github/workflows/pr_integration_tests.yml uses pull_request_target with the synchronize event and preserves ok-to-test, approved, or lgtm labels across newly pushed commits, allowing a fork contributor to obtain approval for a benign revision and then run changed code from refs/pull/${{ github.event.pull_request.number }}/merge through privileged make targets. The job exposes GCP, AWS, and Snowflake credentials to that code, enabling runner code execution, credential disclosure, and possible access to downstream cloud resources. An external label-removal integration could mitigate the condition, but no repository workflow provided that protection. This issue is fixed in version 0.65.0.

Affected products (as reported)

Vendor	Product	Versions
feast-dev	feast	< 0.65.0

Weakness: CWE-863 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References

https://github.com/feast-dev/feast/security/advisories/GHSA-2j2x-r73g-hrr5 x_refsource_CONFIRM
https://github.com/feast-dev/feast/commit/76192229eca01661109ed56e0dd0cf8f732975f6 x_refsource_MISC
https://github.com/feast-dev/feast/releases/tag/v0.65.0 x_refsource_MISC