CVE-2025-47775: bullfrog — Exploit & Fix

Description

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.

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CVSS v3.1 Score

6.2

MEDIUM

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

Weakness Type (CWE)

CWE-201 CWE-201

Affected Products

Vendor	Product	Versions
bullfrogsec	bullfrog	< 0.8.4

References

Advisories & Patches

https://github.com/bullfrogsec/bullfrog/commit/ae7744ae4b3a6f8ffc2e49f501e30bf1a43d4671 https://github.com/bullfrogsec/bullfrog/security/advisories/GHSA-m32f-fjw2-37v3 https://github.com/bullfrogsec/bullfrog/security/advisories/GHSA-m32f-fjw2-37v3

Exploits

https://github.com/bullfrogsec/bullfrog/security/advisories/GHSA-m32f-fjw2-37v3 https://github.com/bullfrogsec/bullfrog/security/advisories/GHSA-m32f-fjw2-37v3

Other References

https://github.com/bullfrogsec/bullfrog/releases/tag/v0.8.4

Frequently Asked Questions

What is CVE-2025-47775? +

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. It has a CVSS v3.1 base score of 6.2 (MEDIUM).

How severe is CVE-2025-47775? +

CVE-2025-47775 has a CVSS v3.1 score of 6.2 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-47775? +

CVE-2025-47775 affects products from bullfrogsec, specifically: bullfrog. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-47775? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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