GHSA-f8pq-3926-8gx5
Unsanitized user controlled input in module generation
GHSA-f8pq-3926-8gx5 is a high vulnerability (CVSS 8.1) in @opentelemetry/instrumentation, published August 9, 2023. No source lists public exploit code. Fixed in @opentelemetry/instrumentation 0.41.2.
- Severity
- 8.1 HighCVSS 3.1, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
0.41.2@opentelemetry/instrumentation
Description
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/instrumentationwith support for EcmaScript Modules is not needed, ensure that none of the following options are set (either via command-line or theNODE_OPTIONSenvironment 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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- Low
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@opentelemetry/instrumentationnpm | 0.40.0 up to 0.41.2 | 0.41.2 |
What each source reports
GitHub Advisories Score used
Unsanitized user controlled input in module generation
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/instrumentationwith support for EcmaScript Modules is not needed, ensure that none of the following options are set (either via command-line or theNODE_OPTIONSenvironment 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
- Record
GHSA-f8pq-3926-8gx5- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L - Updated
- 2026-11-02
OSV
Unsanitized user controlled input in module generation
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/instrumentationwith support for EcmaScript Modules is not needed, ensure that none of the following options are set (either via command-line or theNODE_OPTIONSenvironment 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
- Record
GHSA-f8pq-3926-8gx5- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.