High severity · published Sep 21, 2026
CVE-2026-55563
Feast: `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`
8.9
CVSS
0.5%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
feast · feast-dev
< 0.65.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-55563
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-55563
github.com
https://github.com/feast-dev/feast/commit/76192229eca01661109ed56e0dd0cf8f732975f6
github.com
https://github.com/feast-dev/feast/releases/tag/v0.65.0
github.com
https://github.com/feast-dev/feast/security/advisories/GHSA-2j2x-r73g-hrr5
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