Versioned security assessment

Report ID: SA-5ADE2A84

7/15/2026, 2:56:52 PM

backend-developer security assessment v2

Skill Security Certification Report

Audit History
Scanner version 3.0.0 Audit model: codex Historical report
Skill name
backend-developer
Version
v2
Maintainer
zl2023github
Source
github.com/zl2023github/software-engineer-skills/tree/main/software-engineering/backend-developer
Coverage
1 Files scanned · 215 Lines analyzed
Policy version
skillstore-security-audit-policy-v1

Highest confirmed finding severity

Medium

2 confirmed security findings require attention.

Installation context

Historical evidence

This report may not describe the currently installable artifact. Open the current Skill page for install guidance.

Open current Skill page

This report does not block or authorize the manifest or ZIP.

All 33 static alerts are false positives caused by Markdown formatting, local examples, or ordinary backend terminology. Two medium semantic issues remain in the sample guidance: exception details may reach clients, and cryptographic advice is ambiguous. No prompt injection or malicious intent was found.

Report position

Historical report

Open audit history before using this report to install.

Audit attestation

Attestation superseded

A newer attestation exists.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

1 Files scanned · 215 Lines analyzed

2 items shown for review

Limitations

This report does not claim runtime or sandbox execution and does not prove the absence of side effects.

Evidence chain

Follow the evidence from source binding to the install contract. Available evidence supports verification; it is not a safety guarantee.

  1. Source

    Commit and path bound

  2. Artifact

    Content and tree hashes bound

  3. Audit

    Complete

  4. Install contract

    Open manifest to verify

    Open manifest

Capabilities observed

Observed means this report recorded supporting evidence. Not recorded does not prove that a capability is absent.

Contains scripts

May execute code included with the Skill.

Not recorded by this audit

Network access

May connect to external services.

Observed in 3 evidence locations

Filesystem access

May read or write local files.

Observed in 1 evidence location

Env variables

May read values from the process environment.

Not recorded by this audit

External commands

May invoke commands or programs outside the Skill.

Observed in 23 evidence locations

Risk findings

Confirmed security concerns are separated from items that still need review.

Confirmed security concerns (2)

RISK-001 Medium
SKILL.md:159-164
Raw Exception Details Returned to Clients
The FastAPI example converts exceptions to response text, which can expose internal paths, database details, or sensitive operational context.
The example directly assigns str(exc) to a client-visible message. Raw exception disclosure is a well-established information exposure risk.
RISK-002 Medium
SKILL.md:56
Ambiguous Sensitive-Field Cryptography Guidance
The guidance presents AES-256 and bcrypt as encryption alternatives, although bcrypt is irreversible and AES security depends on mode and key handling.
Line 56 explicitly groups AES-256 and bcrypt under sensitive-field encryption. The recommendation can lead to incorrect protection choices.

Remediation

Suggested fixes recorded by this audit. Applying them is the maintainer’s responsibility.

  1. FIX-001
    Medium
    The FastAPI exception handler returns the raw exception text to clients.
    Return a generic client message, log detailed errors internally, and attach only a trace identifier to the response.
  2. FIX-002
    Medium
    The sensitive-field guidance treats AES-256 and bcrypt as interchangeable encryption options.
    Separate password hashing from field encryption, and specify authenticated encryption, secure key storage, and key rotation.

Expert evidence

Immutable subject identity, scanner metadata, dismissed matches, and source-level evidence.

Artifact subject

Marketplace commit
5ade2a84777b60880ba0b1bc63058ec140d7aac3
Content hash
315f6e5fcb9a63bc08af79bc5ed85286303b588555ba636295ba918f91df46b4
Tree hash
1bbbd9fa9b3b59f8e1ddb0ade74988e39ec5f35192d2d27b6416b0f1a6d7bb56
Skill path
skills/zl2023github/backend-developer
Audit payload hash
aee1caf1c24677c201c02b08a700905b

Analysis metadata

Audit model: codex

Analysis state: Complete

Scope is limited to the recorded files, lines, methods, and evidence. No runtime or sandbox execution is claimed.

Verify and export

JSON report Signed attestation CITATION.cff SARIF 2.1.0 Signed installation manifest Source

The manifest and lockfile bind install artifacts to cryptographic hashes. This integrity claim is separate from the security assessment.

Audit attestation: superseded