Product support scope Qoder Security will be available first in Qoder Desktop and Qoder CLI, with other Qoder products following. Specific capabilities and availability are subject to each product's release notes.
What Is Qoder Security
Qoder Security is the code security capability that Qoder provides for AI coding workflows. During the process of Qoder Agent writing or modifying code, it uses static checks, code semantic analysis, and cross-file data flow tracking to help identify potential security risks and provide risk locations, propagation paths, and assessment rationale related to the code.
Qoder Security supports different levels of security analysis through three layers:
| Detection Level | Analysis Method | Primary Function |
|---|---|---|
| Static Check | High-risk pattern and rule matching | Quickly identify dangerous functions, hardcoded keys, and other clear risks |
| Lightweight Scan | Semantic analysis of incremental changes | Determine how external inputs enter network requests, database queries, or sensitive operations |
| Deep Scan | Cross-file, cross-function data flow tracking | Identify complete risk paths that are difficult to discover in a single file |
/security-scan to actively initiate security scans.
After discovering issues, developers can continue to have the Agent analyze and modify code within the current session, then run scans again to re-verify remediation results. This way, security feedback can extend from a single alert to a complete workflow of "discover — understand — fix — re-verify."
Qoder Security provides proactive security checks for the coding stage, complementing manual code reviews, professional penetration testing, SAST, SCA, and existing organizational security governance processes — not replacing them.
Before You Begin
This article covers five common security boundaries:
| Practice | Normal Development Need | Key Risk to Observe |
|---|---|---|
| YAML Response Compatibility | Parse YAML-formatted service responses | Insecure deserialization |
| Import Cover from URL | Server-side download of user-provided images | Server-Side Request Forgery (SSRF) |
| Upload and Restore Snapshot | Save snapshots using uploaded filenames | Path traversal |
| Database Write Convenience Methods | Dynamically generate table and column names | SQL identifier injection |
| FFmpeg Custom Parameters | Add extended parameters to audio processing commands | Command injection |
- Prepare the designated project and code version in a local or isolated test environment.
- Open the project with Qoder Desktop or Qoder CLI and confirm that Qoder Security is enabled.
- Copy the original prompt provided in this article and let the Agent implement the requirement following the normal development workflow.
-
After the feature implementation is complete, execute
/security-scan. - Review risk locations, data propagation paths, and assessment rationale.
- Review the suggested remediation plan and let the Agent complete the fix.
- Run the project's existing tests to check whether related functionality is affected.
-
Execute
/security-scanagain to observe whether the same type of risk on the same path is still reported, and confirm the modification results alongside tests.
Scenario purpose The following scenarios reference publicly disclosed and already-fixed historical security issues, used to observe whether the coding stage can identify and handle similar risks. The practice purpose is not to require the Agent to intentionally write vulnerabilities, nor does it represent Qoder reproducing or rediscovering related CVEs. Related open-source projects and CVEs are used only to indicate the public scenario source and do not represent cooperation or endorsement.
Result boundaries Different product versions, project states, and session contexts may affect scan results. The observation points listed in this article do not constitute a guarantee of specific scan results.
Practice 1: Add YAML Compatibility for Service Responses
Scenario Background
Client-side compatibility with multiple content formats returned by the server is a common product evolution requirement. However, when data formats change, parsing methods change accordingly: if an external response is handed to a deserialization interface capable of instantiating arbitrary objects, what appears to be a simple compatibility change may introduce high-risk behavior.
This scenario is used to observe whether Qoder Security can combine response source, Content-Type determination, and YAML parsing method to identify insecure deserialization risks, rather than simply seeing "added YAML support."
Setup
opensearch-ruby project with Qoder, then enter the following prompt as-is.
Prompt (Copy in Full)
Trigger and Observe
After the Agent completes modifications, execute /security-scan. Focus on:
- Whether the scan identifies the path from external response body entering the YAML parsing interface.
- Whether the results explain why the specific parsing method may pose a risk.
- Whether the results describe the input conditions or reachable paths required for the risk to materialize.
- Whether the remediation plan limits deserializable data types while maintaining YAML compatibility.
- After related tests pass, run the scan again to observe whether the same type of risk on the same path is still reported.
Practice 2: Import Cover Image from URL
Scenario Background
Importing images from URLs reduces the need for users to download and then re-upload, which is a common requirement in content management systems. However, when the server accesses an external address on behalf of the user, the product simultaneously establishes a new network access path. If the target address and redirects lack boundary checks, external input may be used to access localhost, internal networks, or other network resources that should not be exposed.
This scenario is used to observe whether Qoder Security can analyze server-side request forgery risks along the "user submits URL — server downloads — redirects — temporary file" call chain.
Setup
kavita project with Qoder, then enter the following prompt as-is.
Prompt (Copy in Full)
Trigger and Observe
After the Agent completes modifications, execute /security-scan. Focus on:
- Whether the scan identifies that the URL comes from interface input and ultimately enters a server-side network request.
- Whether the results pay attention to localhost addresses, private network addresses, and target addresses after redirects.
- Whether the risk description provides the specific code path from input point to request point.
- Whether the remediation plan establishes clear protocol and network address boundaries while preserving the image import capability.
- After related tests pass, run the scan again to observe whether the same type of risk on the same path is still reported.
Practice 3: Upload and Restore Collection Snapshots
Scenario Background
Snapshot upload and restoration typically spans multiple modules including interface handling, file saving, and data recovery. The upload functionality itself is not complex, but if the client-provided filename participates in path construction without normalization and boundary validation, files may be written outside the expected snapshot directory.
This scenario is used to observe whether Qoder Security can identify the complete path traversal risk across multipart parsing, filename handling, path generation, and snapshot restoration flows.
Setup
qdrant project with Qoder, then enter the following prompt as-is.
Prompt (Copy in Full)
Trigger and Observe
After the Agent completes modifications, execute /security-scan. Focus on:
- Whether the scan tracks how the multipart filename enters path construction and file write operations.
- Whether the results explain that merely checking string surfaces is insufficient to guarantee the final path remains within the snapshot directory.
- Whether the risk path covers the call relationship between the upload handler and existing restoration flow.
- Whether the remediation plan establishes boundary constraints on both filenames and normalized target paths.
- After related tests pass, run the scan again to observe whether the same type of risk on the same path is still reported.
Practice 4: Add Database Write Convenience Methods
Scenario Background
Database wrappers typically use prepared statements and parameter binding for query values, but SQL identifiers such as table names and column names cannot be bound in the same way. If dynamic identifiers come from untrusted data structures, the code may still have injection risks even if all "values" are correctly bound.
This scenario is used to observe whether Qoder Security can distinguish between SQL values and SQL identifiers, and assess whether dynamic concatenation constitutes a risk based on caller controllability.
Setup
flightphp-core project with Qoder, then enter the following prompt as-is.
Prompt (Copy in Full)
Trigger and Observe
After the Agent completes modifications, execute /security-scan. Focus on:
- Whether the scan distinguishes between parameterized query values and dynamically concatenated table/column names.
-
Whether the results analyze the source and controllability of
$tableand$datakeys. - Whether the risk description explains why PDO parameter binding alone is insufficient for SQL identifiers.
- Whether the remediation plan establishes clear constraints on allowed table and column names while preserving existing interface capabilities.
- After related tests pass, run the scan again to observe whether the same type of risk on the same path is still reported.
Practice 5: Support FFmpeg Custom Parameters
Scenario Background
Allowing callers to pass in additional media processing parameters can quickly extend capabilities like cropping and filtering. However, if an external string is directly concatenated into a command and interpreted by the shell, it may alter the intended command structure and execute unauthorized operations.
This scenario is used to observe whether Qoder Security can track custom parameters from method entry into command construction and process execution paths, and determine whether command injection risks exist.
Setup
discordrb project with Qoder, then enter the following prompt as-is.
Prompt (Copy in Full)
Trigger and Observe
After the Agent completes modifications, execute /security-scan. Focus on:
-
Whether the scan tracks how the
optionsparameter enters the command string and process execution interface. - Whether the results distinguish between "supporting more FFmpeg options" as a product goal and "allowing shell command structure modification" as a security consequence.
- Whether the risk description points out that parameter source and actual invocation method are important conditions for determining whether the risk materializes.
- Whether the remediation plan prioritizes structured parameter passing or strict allowlists, rather than relying on incomplete string filtering.
- After related tests pass, run the scan again to observe whether the same type of risk on the same path is still reported.
Understanding Qoder Security's Value Through Five Scenarios
The five practices cover data parsing, network access, file systems, databases, and system commands respectively. They use different languages and project structures but share one common characteristic: developers propose reasonable, common product requirements, while risks are hidden in how data enters and reaches sensitive operations.
The value of Qoder Security is not just adding one more scan, but integrating security analysis into the actual coding workflow:
- Discover risks earlier: Provide security feedback during feature implementation and code modification stages, reducing the cost of handling issues that enter subsequent stages.
- Provide contextual evidence: Analyze risks by combining input sources, data propagation, and sensitive operations, helping developers understand why issues may materialize.
- Drive remediation to completion: Maintain the process from discovery, localization, modification, to re-verification within the same coding session, shortening the path from security findings to code fixes.
- Complement existing systems: Form a complement with CI/CD, SAST, SCA, manual reviews, and professional security testing, adding a security feedback mechanism close to the coding context.
Start Experiencing Qoder Security
Choose a scenario closest to your daily development, and enter the prompts provided in this article in Qoder Desktop or Qoder CLI. After feature implementation is complete, execute /security-scan to observe whether Qoder Security can locate risks, present propagation paths, and assist with remediation and re-verification.
- See how CLI uses Qoder Security: Qoder CLI Security
- See how Desktop uses Qoder Security: Qoder Desktop Security