Description
Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard)
References3
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N - EPSS — exploit probability
- 0% percentile: 24 · as of 12 November 2026
- CWE
- CWE-280CWE-863
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.