CVE-2025-47775

Bullfrog's DNS over TCP bypasses domain filtering

Bullfrog is a GithHb Action to block unauthorized outbound traffic in GitHub workflows. Prior to version 0.8.4, using tcp breaks blocking and allows DNS exfiltration. This can result in sandbox bypass. Version 0.8.4 fixes the issue.

Affected

bullfrogsec · bullfrog

CVSS v3.1 NVD

8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVSS v3.1 GITHUB

6.2 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.49% chance of exploitation in the next 30 days, 41st percentile

Published

2025-05-14

Proof-of-concept exploits (2)

• bullfrogsec/bullfrog/security/advisories/GHSA-m32f-fjw2-37v3
• advisories/GHSA-m32f-fjw2-37v3

Security advisories

• bullfrogsec/bullfrog/commit/ae7744ae4b3a6f8ffc2e49f501e30bf1a43d4671

References

• CVE Record
• NVD entry