Unsanitized user controlled input in module generation
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
## Impact The `import-in-the-middle` loader used by `@opentelemetry/instrumentation` works by generating a wrapper module on the fly. The wrapper uses the module specifier to load the original module and add some wrapping code. It allows for remote code execution in cases where an application passes user-supplied input directly to an `import()` function. ## Patches This vulnerability has been patched in `@opentelemetry/instrumentation` version `0.41.2` ## Workarounds - Do not pass any user-supplied input to `import()`. Instead, verify it against a set of allowed values. - If using `@opentelemetry/instrumentation` with support for EcmaScript Modules is not needed, ensure that none of the following options are set (either via command-line or the `NODE_OPTIONS` environment variable): ``` --experimental-loader=@opentelemetry/instrumentation/hook.mjs --experimental-loader @opentelemetry/instrumentation/hook.mjs --loader=import-in-the-middle/hook.mjs --loader import-in-the-middle/hook.mjs ``` ## References - https://github.com/DataDog/import-in-the-middle/security/advisories/GHSA-5r27-rw8r-7967
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | @opentelemetry/instrumentation (npm) | 0.40.0 to before 0.41.2 | 0.41.2 | Patch available | GHSA-f8pq-3926-8gx5 |
- @opentelemetry/instrumentation (npm) Vendor— Affected 0.40.0 to before 0.41.2 Fixed in 0.41.2 Patch available GHSA-f8pq-3926-8gx5
Remediation
- Fix · GHSA-f8pq-3926-8gx5 @opentelemetry/instrumentation (npm) Fixed in 0.41.2 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-f8pq-3926-8gx5
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences