Vulnerability Description
App::Ack versions before 3.10.0 for Perl allow memory exhaustion via an unbounded context value in a project .ackrc. ack searches up the directory hierarchy from the current directory for a project .ackrc and loads its options. The -B and -C context options accepted any positive integer, and ack sized the before-context buffer to that value, so a project .ackrc setting --before-context=100000000 made ack allocate a buffer of 100 million elements. A project .ackrc committed to an untrusted repository can abort ack with an out-of-memory condition.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/beyondgrep/ack3/commit/45ff5fe77dbd96f7332f31943102291f878f30
- https://metacpan.org/release/PETDANCE/ack-v3.10.0/source/Changes
- http://www.openwall.com/lists/oss-security/2026/07/08/8
FAQ
What is CVE-2026-49146?
CVE-2026-49146 is a vulnerability with a CVSS score of 7.5 (HIGH). App::Ack versions before 3.10.0 for Perl allow memory exhaustion via an unbounded context value in a project .ackrc. ack searches up the directory hierarchy from the current directory for a project ....
How severe is CVE-2026-49146?
CVE-2026-49146 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-49146?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.