LiteLLM panw_prisma_airs string timeout produces misleading Security scan failed 500

What this error means

string-valued timeout produces misleading 'Security scan failed' 500 is a LiteLLM failure pattern reported for developers trying to fix misclassified 500 error caused by passing string timeout instead of numeric value — confusing users about root cause. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

GitHub issue #28540 on BerriAI/litellm opened May 22, 2026 by scthornton. String-valued timeout parameter passed to panw_prisma_airs provider triggers cascading error chain that surfaces as ‘Security scan failed’ 500 instead of clear validation error. llm translation label. Fresh report (1 hour old) with high specificity. Affects production proxy configurations using Prisma AIRS scanner. Not a common error signature — low competition if covered correctly.

Common causes

• GitHub issue #28540 on BerriAI/litellm opened May 22, 2026 by scthornton. String-valued timeout parameter passed to panw_prisma_airs provider triggers cascading error chain that surfaces as ‘Security scan failed’ 500 instead of clear validation error. llm translation label. Fresh report (1 hour old) with high specificity. Affects production proxy configurations using Prisma AIRS scanner. Not a common error signature — low competition if covered correctly.

Quick fixes

1. Confirm the exact error signature matches string-valued timeout produces misleading 'Security scan failed' 500.
2. Check the LiteLLM account, local tool state, and provider configuration involved in the failing workflow.
3. Compare the failing environment with a known working setup, then change one configuration value at a time.

Platform/tool-specific checks

• Verify the command, editor, extension, or API client that produced the error.
• Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
• Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

1. Capture the exact error message and the command, editor action, or request that triggered it.
2. Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
3. Review the source evidence below and compare it with your environment.
4. Apply one change at a time and rerun the smallest failing action.
5. Keep the working fix documented for the team or deployment environment.

How to prevent it

• Keep provider/tool configuration documented.
• Record non-secret diagnostics such as tool version, provider name, model name, and command path.
• Add a lightweight check before CI or production workflows depend on the tool.

Sources checked

• https://github.com/BerriAI/litellm/issues/28540

Evidence note: GitHub issue #28540 on BerriAI/litellm opened May 22, 2026 by scthornton. String-valued timeout parameter passed to panw_prisma_airs provider triggers cascading error chain that surfaces as ‘Security scan failed’ 500 instead of clear validation error. llm translation label. Fresh report (1 hour old) with high specificity. Affects production proxy configurations using Prisma AIRS scanner. Not a common error signature — low competition if covered correctly.

Related errors

• LiteLLM

FAQ

What should I check first?

Start with the exact string-valued timeout produces misleading 'Security scan failed' 500 text and the smallest action that reproduces it.

Can I ignore this error?

No. Treat it as a failed LiteLLM workflow until the root cause is understood.

Is this guaranteed to have one fix?

No. The imported evidence supports the troubleshooting path above, but tool behavior can vary by account, plan, version, provider, and local configuration.

How do I know the fix worked?

Rerun the same command, editor action, or request. The fix is working when that action completes without string-valued timeout produces misleading 'Security scan failed' 500.