Description
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.
Published: 2026-07-08
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Solution

Upgrade to a future ack release.

Vendor Workaround

Run ack with --noenv, or avoid running ack in a directory tree that contains an untrusted .ackrc.

Tracking

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Advisories

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History

Wed, 08 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 08 Jul 2026 15:00:00 +0000

Type Values Removed Values Added
Description 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.
Title App::Ack versions through 3.10.0 for Perl read arbitrary files via --files-from in a project .ackrc
Weaknesses CWE-426
CWE-73
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published:

Updated: 2026-07-08T15:21:13.451Z

Reserved: 2026-05-27T17:50:04.538Z

Link: CVE-2026-49145

cve-icon Vulnrichment

Updated: 2026-07-08T15:21:03.722Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-426

    Untrusted Search Path

  • CWE-73

    External Control of File Name or Path