OSS Contributions

My security fixes and hardening for Infrastructure, identity, authentication, authorization, and cloud security.

Keycloak

9 merged PRs · decentralized identity · FGAP · token exchange · OIDC fidelity · session integrity · admin UX

• OID4VCI authorization hardening for decentralized identity issuance #46690
• FGAP enforcement fix for user membership updates #46957
• FGAPv2 token-exchange audience-check fix to deny unsupported requests gracefully #46967
• OIDC value-persistence fix separating localized labels from protocol values #46880
• No-cache enforcement on UserInfo error responses #46979
• Authentication-session edge-case fix for NullPointerException failures #46878
• Admin UI pagination fix for client-session auditing #46889
• Organization-scoped membership resolution fix #47083
• Allow organization IdPs for members linked to another broker #47634

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Terraform

1 merged PR · AWS · IaC · Identity · Regression · Token

• Provider issue - Fix web identity token configuration #49744

Home Assistant Core

5 merged PRs · OAuth error handling · safe re-authentication · token refresh recovery

• Google Sheets OAuth recovery fix for safe re-authentication and retry behavior #165000
• Google Mail token-refresh handling fix preserving correct re-authentication and fallback behavior #165371
• Redact Z-Wave add-on options sensitive error details #167239
• Remove Supervisor refresh tokens #179219
• Abode: report change setting failures #179756

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Better Auth

4 merged PRs · OTP safety · cryptographic validation · session integrity

• OTP race-condition fix blocking unauthorized token reuse #8067
• Strict cryptographic validation to reduce active session hijacking risk #8121
• Set-Cookie decoding fix restoring persistent session integrity #8133
• Correct get-session nullable schema for OAS 3.1 #8389

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Authentik

4 merged PRs · RBAC clarity · OAuth2 credential handling · MFA flow correctness

• RBAC scope clarification to prevent enterprise access misconfiguration #20786
• OAuth2 credential-decoding fix preventing application lockouts #20781
• Authenticator-selection reset between validation stages to prevent MFA carryover #20802
• sources/ldap/freeipa: handle list-valued krbLastPwdChange #20600

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Cloud Custodian

3 merged PRs · AWS IAM telemetry · compliance signal accuracy · SecurityHub Lambda findings

• AWS IAM exception-handling fix restoring accurate AccessDenied compliance telemetry #10614
• SecurityHub Lambda findings fix sanitizing unsupported VpcConfig fields for schema-valid imports #10625
• aws - policystatement - normalize condition key case in has-statement #10623

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Leapstacks2

5 security review contribution · Private AWS IAM review · structural access controls

• AWS security review and structural access-control hardening plus a misconfiguration deep dive repository

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Zitadel

1 merged PR · gRPC error · authentication tightening · endpoint proper communications

• Preserves native gRPC status errors so they pass through correctly #11786