CVE-2026-118988: Path Traversal

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.

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Weakness Type (CWE)

CWE-22 Path Traversal

References

Other References

https://github.com/oetiker/callbackery/commit/128efe804fde41bba9633fe00dc94e30f12087fb.patch https://metacpan.org/release/OETIKER/CallBackery-0.60.1/source/CHANGES http://www.openwall.com/lists/oss-security/2026/10/30/11

Frequently Asked Questions

What is 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. 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.

How do I check if I'm vulnerable to CVE-2026-118988? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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