App::Ack versions through 3.10.0 for Perl read arbitrary files via --files-from in a project .ackrc

published 2026-07-08 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-42288

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 42%
public exploits: 0; none known

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.

Patch / fix

distros 2

opensuse alpine

ack openSUSE Tumbleweed 3.10.0-1.1

opensuse advisories openSUSE-SU-2026:10965-1

ack Alpine 3.24 3.10.0-r0

alpine advisories ALPINE-CVE-2026-49145

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 4 mo ago (2026-07-08)

Exploit prediction

0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

PETDANCE App::Ack

Classification

Weakness

CWE-73 External Control of File Name or Path
CWE-426 Untrusted Search Path

References

Sources

CVE List CVE-2026-49145
NVD CVE-2026-49145

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary