VNX-GH-309: Organisation webhook deliveries can be forged or intercepted

An organisation webhook has no secret, or disables TLS verification.

Updated 02 Nov 2026Checked against cli@24498404a, vdb-sca-match@v0.8.14

Organisation webhooks receive events from every repository. An unsigned or unverified hook lets an attacker forge or read them.


Severity	Medium
Confidence	high
CWE	CWE-345, CWE-295
Command	`vulnetix gha org`, `vulnetix gha audit`
Needs	org. Without them the rule is reported as not evaluated, never as passed.

Remediation

Set a webhook secret and enable SSL verification.

Run only this rule

vulnetix gha org --rule VNX-GH-309

Scoring

CWSS vector at the rule’s default severity: CWSS:1.0/TI:M/AP:A/AL:A/IC:N/FC:LT/RP:N/RL:A/AV:I/AS:N/IN:A/SC:A/BI:M/DI:M/EX:M/EC:N/P:W. A finding whose severity the repository’s settings moved is scored at its adjusted severity.

All rules: GitHub rules.

Edit this pageSources: vdb-sca-match/ghaudit/rules_org.go, cli/internal/ghtasks/docs.go