CPANSA-CallBackery-2026-118988: CallBackery vulnerability
| Publisher | giterlizzi | Document category | csaf_security_advisory |
|---|---|---|---|
| Initial release date | 2026-10-30T00:00:00 | Engine | CSAF Perl Toolkit 0.26 |
| Current release date | 2026-10-30T00:00:00 | Build Date | |
| Current version | 1 | Status | final |
| CVSS v3.1 Base Score | Severity | ||
| Original language | Language | en | |
| Also referred to | |||
Vulnerability 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.
Vulnerabilities
CVE-2026-118988
Vulnerability DescriptionCallBackery 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.
| Weakness | CWE-22 : Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') |
|---|
Product status
Known affected
| Product | Score | ||||
|---|---|---|---|---|---|
| CallBackery less than 0.60.1 |
|
Fixed
- CallBackery greater than or equal 0.60.1
giterlizzi
Namespace: https://github.com/giterlizzi/
gdt@cpan.org
References
- CPANSA-CallBackery-2026-118988 JSON self
https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-callbackery-2026-118988.json - https://github.com/oetiker/callbackery/commit/128efe804fde41bba9633fe00dc94e30f12087fb.patch external
https://github.com/oetiker/callbackery/commit/128efe804fde41bba9633fe00dc94e30f12087fb.patch - https://metacpan.org/release/OETIKER/CallBackery-0.60.1/source/CHANGES external
https://metacpan.org/release/OETIKER/CallBackery-0.60.1/source/CHANGES - http://www.openwall.com/lists/oss-security/2026/10/30/11 external
http://www.openwall.com/lists/oss-security/2026/10/30/11 - CVE-2026-118988 (NVD) external
https://nvd.nist.gov/vuln/detail/CVE-2026-118988
Revision history
| Version | Date of the revision | Summary of the revision |
|---|---|---|
| 1 | Fri Oct 30 00:00:00 2026 | First release |
Sharing rules
TLP:WHITE
For the TLP version see: https://www.first.org/tlp/