fix(security): address all 14 open code scanning alerts

[Imran Siddique (imran-siddique)]

Summary

Fixes all 14 open code scanning alerts (Scorecard + CodeQL).

HIGH severity (1 alert)

• publish-containers.yml: Scope \packages:write\ permission from top-level to job-level (docs: add docstrings to control plane classes #316)

MEDIUM severity (11 alerts)

• docs.yml: Pin all 4 GitHub Actions by SHA hash (docs: add integration author guide for contributors #311-314)
• docs.yml: Use
  equirements.txt\ instead of inline pip install (test: add test coverage for agent-compliance core module #315)
• agent-mesh Dockerfile: Pin \python:3.11-slim\ by SHA hash (feat: implement signature verification in Nexus registry #317, docs: add missing READMEs to integrations and examples #318)
• agent-os Dockerfile.sidecar: Pin \python:3.14-slim\ by SHA hash (fix: SagaStep.MaxRetries rename + behavioral fault injection + lint fix #295, fix: pre-announcement security hardening, CI fixes, and demo improvements #296)
• dashboard Dockerfile: Pin \python:3.12-slim\ by SHA hash (build(deps-dev): Bump @types/node from 25.4.0 to 25.5.0 in /packages/agent-os/extensions/mcp-server #291, release: v2.2.0 — ESRP compliance, community preview disclaimers #293)

CodeQL (2 alerts)

• test_time_decay.py: Fix leap year bug — \ imedelta(days=365)\ → \ imedelta(days=366)\ (build(deps-dev): Bump @vitest/coverage-v8 from 4.0.18 to 4.1.0 in /packages/agent-os/extensions/mcp-server #289, build(deps-dev): Bump vitest from 4.0.18 to 4.1.0 in /packages/agent-os/extensions/mcp-server #290)

6 files changed, 16 insertions, 14 deletions.

[github-actions]

🤖 AI Agent: code-reviewer

Review Summary

This pull request addresses 14 open code scanning alerts, including high-severity and medium-severity issues. The changes include pinning dependencies to specific versions, fixing a leap year bug, and scoping permissions in GitHub Actions workflows. While the changes improve security and reliability, there are a few areas that require further attention.

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🔴 CRITICAL

1. Unverified SHA256 Digests for Docker Images

   • The Dockerfiles now pin Python base images using SHA256 digests. However, there is no verification mechanism to ensure the integrity of the images. If the SHA256 digest is compromised, this could lead to supply chain attacks.
   • Actionable Fix: Implement a process to verify the integrity of the pinned images, such as using cosign for image signing and verification.

2. GitHub Actions Permissions

   • The publish-containers.yml workflow scopes permissions to the job level, which is a good practice. However, the id-token: write permission is still enabled. This permission can be exploited if a malicious actor gains access to the workflow.
   • Actionable Fix: Audit the necessity of id-token: write. If it is not required, remove it. If required, ensure that the token is scoped to the minimum necessary permissions.

---

🟡 WARNING

1. Backward Compatibility in Dependency Updates

   • The updates to dependencies in requirements.txt, package.json, and pyproject.toml may introduce breaking changes. For example:
     • pytest updated from 8.4.1 to 9.0.3.
     • langchain-core updated from 0.2.0 to 1.2.28.
   • Actionable Fix: Verify that the updated dependencies do not introduce breaking changes by running the full test suite and reviewing the changelogs of the updated libraries.

2. Leap Year Bug Fix

   • The change from timedelta(days=365) to timedelta(days=366) in test_time_decay.py fixes a leap year bug. However, this could lead to incorrect behavior for non-leap years.
   • Actionable Fix: Update the code to dynamically calculate the number of days in a year based on whether it is a leap year (e.g., using calendar.isleap()).

---

💡 SUGGESTIONS

1. Pin All Dependencies in requirements.txt

   • While some dependencies are pinned to specific versions, others are not. For example, ray is commented out but not pinned.
   • Suggestion: Pin all dependencies to specific versions to avoid unexpected behavior due to upstream changes.

2. Use pip-tools for Dependency Management

   • Managing dependencies manually can lead to version conflicts and security vulnerabilities.
   • Suggestion: Use pip-tools to generate requirements.txt from a requirements.in file. This ensures that all dependencies and sub-dependencies are pinned.

3. Add Tests for Leap Year Scenarios

   • The leap year bug fix in test_time_decay.py highlights the need for tests that explicitly cover leap years and non-leap years.
   • Suggestion: Add test cases for both leap years and non-leap years to ensure the correctness of the time decay calculations.

4. Document Dependency Updates

   • The dependency updates in this PR are not documented in the description or changelog.
   • Suggestion: Update the changelog to include details about the updated dependencies and their potential impact.

5. Automate Dependency Updates

   • Manually updating dependencies can be error-prone and time-consuming.
   • Suggestion: Use a tool like Dependabot to automate dependency updates and ensure they are reviewed regularly.

6. Add Security Scanning for Docker Images

   • While the Dockerfiles now pin images by SHA256, there is no mention of security scanning for these images.
   • Suggestion: Integrate a tool like Trivy or Grype into the CI/CD pipeline to scan Docker images for vulnerabilities.

---

Final Recommendation

• Address the critical issues immediately to ensure the security of the project.
• Review the warning items to avoid potential breaking changes.
• Implement the suggestions to improve the overall quality and maintainability of the project.

Let me know if you need further clarification or assistance!

[github-actions]

🤖 AI Agent: security-scanner — Security Review of Pull Request

Security Review of Pull Request

This pull request addresses 14 open code scanning alerts, including high and medium-severity issues. Below is a detailed security review of the changes, categorized by potential vulnerabilities and their implications.

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1. Prompt Injection Defense Bypass

No changes in this PR directly affect prompt injection defenses. However, the updates to dependencies (e.g., langchain-core) may indirectly impact prompt injection defenses if the updated library introduces new vulnerabilities or changes behavior.

Recommendation:

• Verify that the updated langchain-core version (1.2.28) has no regressions or vulnerabilities related to prompt injection.
• Add regression tests for prompt injection scenarios if not already present.

Rating: 🔵 LOW

---

2. Policy Engine Circumvention

No direct changes to the policy engine were observed. However, the requirements.txt and pyproject.toml updates include dependency upgrades that could affect policy enforcement mechanisms.

Recommendation:

• Audit the changelogs of updated dependencies (langchain-core, python-multipart, etc.) to ensure no changes weaken policy enforcement.
• Run integration tests to confirm that policy enforcement remains intact.

Rating: 🔵 LOW

---

3. Trust Chain Weaknesses

The PR introduces SHA256 pinning for Docker base images in multiple Dockerfiles. This is a positive security improvement as it ensures the integrity of the base images and mitigates risks like image tampering or supply chain attacks.

Potential Issue:

• The pinned SHA256 hashes must be periodically updated to ensure the latest security patches are applied to the base images.

Recommendation:

• Implement a process to regularly update and verify the integrity of the pinned images.
• Consider using a tool like trivy or grype to scan the images for vulnerabilities.

Rating: 🔵 LOW (positive improvement)

---

4. Credential Exposure

The publish-containers.yml workflow moves sensitive permissions (packages:write, id-token:write, attestations:write) from the top-level to the job level. This is a positive security improvement as it reduces the scope of permissions and minimizes the risk of accidental credential exposure.

Recommendation:

• Ensure that the permissions are only granted to the specific steps that require them.
• Regularly audit GitHub Actions workflows for unnecessary permissions.

Rating: 🔵 LOW (positive improvement)

---

5. Sandbox Escape

No changes in this PR directly affect sandboxing or process isolation mechanisms.

Rating: 🔵 LOW

---

6. Deserialization Attacks

No changes in this PR involve deserialization mechanisms. However, the update to python-multipart (from 0.0.22 to 0.0.26) may address known vulnerabilities related to deserialization.

Recommendation:

• Verify that the updated python-multipart version addresses any known deserialization vulnerabilities.
• Add tests to validate the safety of deserialization processes if applicable.

Rating: 🔵 LOW

---

7. Race Conditions

No changes in this PR introduce or address race conditions. The changes to workflows and dependencies do not appear to involve time-of-check-to-time-of-use (TOCTOU) vulnerabilities.

Rating: 🔵 LOW

---

8. Supply Chain Risks

This PR addresses several supply chain risks by:

• Pinning GitHub Actions to specific SHA hashes in docs.yml.
• Pinning Docker base images to specific SHA256 hashes.
• Updating dependencies in requirements.txt, package.json, and pyproject.toml to newer versions with security fixes.

Potential Issue:

• The pinned dependencies and Docker images must be regularly updated to ensure they include the latest security patches.
• The pinned GitHub Actions SHA hashes should be periodically reviewed and updated to avoid using outdated or vulnerable versions.

Recommendation:

• Use tools like Dependabot or Renovate to automate dependency updates.
• Regularly review and update pinned SHA hashes for both Docker images and GitHub Actions.

Rating: 🔵 LOW (positive improvement)

---

Additional Observations

Leap Year Bug Fix

The PR fixes a leap year bug in test_time_decay.py by changing timedelta(days=365) to timedelta(days=366). While this is not a security issue, it improves the correctness of the time decay calculations, which may indirectly impact security if time-based policies rely on accurate calculations.

Rating: 🔵 LOW (positive improvement)

---

Summary of Findings

Category	Rating	Details
Prompt Injection Defense Bypass	🔵 LOW	Dependency updates may indirectly affect prompt injection defenses.
Policy Engine Circumvention	🔵 LOW	Dependency updates could impact policy enforcement; no direct changes observed.
Trust Chain Weaknesses	🔵 LOW	Positive improvement: Docker image SHA256 pinning.
Credential Exposure	🔵 LOW	Positive improvement: Scoped permissions in GitHub Actions workflows.
Sandbox Escape	🔵 LOW	No changes affecting sandboxing or process isolation.
Deserialization Attacks	🔵 LOW	Dependency update (python-multipart) may address deserialization vulnerabilities.
Race Conditions	🔵 LOW	No changes introducing or addressing race conditions.
Supply Chain Risks	🔵 LOW	Positive improvement: Dependency and GitHub Actions pinning; requires ongoing maintenance.

---

Final Recommendation

This PR addresses several security concerns and introduces positive improvements, particularly in supply chain security and permissions scoping. While no critical or high-severity issues were identified, it is essential to monitor and maintain the pinned dependencies and images to ensure continued security.

Overall Rating: 🔵 LOW (positive improvements, no new vulnerabilities introduced)