CVE-2026-49145
App::Ack versions through 3.10.0 for Perl read arbitrary files via --files-from in a project .ackrc. ack searches up the directory hierarchy from the current directory for a project .ackrc and loads its options. The project-source option blocklist in App::Ack::ConfigLoader does not include --files-from, so a project .ackrc can set it to a path whose listed files ack then reads and searches. Version 3.10.0 added --follow to the blocklist; --files-from remains accepted. A project .ackrc committed to an untrusted repository can make ack read files outside the project and print their matching lines.
- Score
- CVSS 3.1 7.5 High
- Status
- Deferred - 9b29abf9-4ab0-4765-b253-1875cd9b441e
- Published
- 2026-07-08
- Last modified
- 2026-10-25
- Weaknesses
- CWE-426, CWE-73
Affected products
References
- https://metacpan.org/release/PETDANCE/ack-v3.10.0/source/Changes
- http://www.openwall.com/lists/oss-security/2026/07/08/7
