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Developers are leaving third-party GitHub Apps with persistent write access long after canceling subscriptions, creating a severe supply-chain/security risk. The post describes a concrete incident: a canceled tool still had push permissions and made a destructive “rogue commit” impacting a production app right after an App Store launch, implying real revenue and reliability risk.
Repo Permission Firewall
A SaaS that continuously inventories GitHub OAuth tokens and GitHub App installations, flags over-privileged or “zombie” integrations, and enforces time-bound access. It provides policy-based controls (e.g., no third-party app may retain write access after billing cancellation, or outside business hours) and creates an auditable trail for security reviews.
Engineering managers, security leads, and DevOps owners at SMB–midmarket software companies using GitHub with multiple third-party developer tools installed (CI/CD, codegen, IDE agents, analytics).
The post shows a business-critical failure mode: canceled vendors still retain push access and can change private repos without immediate detection, risking broken production deploys. A permission firewall with continuous monitoring + automated revocation closes the gap between billing/tool offboarding and GitHub authorization state, reducing incident likelihood and blast radius.
Free GitHub permission audit report (zombie apps, over-scoped permissions, last-used) with remediation checklist.
$29–$49/mo per GitHub org for monitoring + weekly reports + Slack/email alerts (no enforcement).
$149–$499/mo for policy enforcement (TTL access, approval flows), audit log export, and branch protection templates.
Add-on: continuous compliance packs (SOC2 evidence bundle export, quarterly access review workflow) and multi-org management.
Enterprise license with SSO/SAML, SCIM, dedicated audit data retention, and custom policy rules.
MVP is feasible for a 1–2 person team using GitHub APIs (Apps/OAuth/Org audit log) plus a policy engine and notification integrations. Main risks: GitHub API limitations/permissions for deep visibility, and competition with broader security platforms; mitigated by a narrow wedge (third-party app access governance) and fast time-to-value via an automated audit + one-click revocation.
TAM: ~100k–200k organizations on GitHub (public estimates across GitHub Team/Enterprise + active orgs). SAM (security-conscious SMB/midmarket with multiple third-party tools): ~20k–60k orgs. At $200/mo average, SAM revenue potential ~$48M–$144M ARR.
Manual and reactive; permission state can drift after tool cancellation; hard to operationalize into regular access reviews for small teams.
No time-bound permissions (TTL), no automated revocation tied to policies, limited opinionated risk scoring and alerts for over-privileged integrations.
SMB teams without dedicated security staff that still need guardrails and automation.
Primarily AppSec/dependency and code scanning; does not solve persistent third-party GitHub write access and offboarding drift.
No governance layer for GitHub Apps/OAuth scopes and lifecycle policies.
Teams with strong dependency scanning but weak access governance for dev tooling integrations.
Broad platform with higher cost and longer deployment; often overkill if the acute risk is GitHub integration permissions.
Opinionated workflows specifically for GitHub App permission hygiene, offboarding automation, and developer-friendly remediation.
Midmarket SaaS companies needing a focused GitHub permission control plane without adopting a full CNAPP.
Wedge into a sharply defined, high-severity problem: third-party GitHub app/OAuth access drift after subscription cancellation. Differentiate by (1) policy enforcement (TTL + change windows + approval flows) rather than reporting, (2) fast onboarding (read-only audit in minutes), and (3) developer-usable remediation (one-click revocation and branch protection presets) priced for SMB/midmarket.
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