AUGUST 24, 2026
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Case File

CVE-2026-49147

HIGH · CVSS 7.5 EPSS 0.33%

Source: NVD + CISA KEV + EPSS · Published 2026-07-08 · Last synced 2026-08-07

CyberRota Analysis

AI-Generated

The App::Ack Perl module versions up to 3.10.0 are vulnerable to printing unsanitized terminal escape sequences from filenames, which can lead to unintended terminal behavior, such as overwriting or recoloring previous output. This vulnerability primarily affects users who utilize the output modes that do not sanitize filenames, particularly those using the --show-types, -l/-L, and -c options. Organizations and developers relying on App::Ack for file searching and output should prioritize this issue to mitigate potential disruptions and security risks in terminal environments.

CVE
CVE-2026-49147
Severity
HIGH
CVSS
7.5
EPSS
0.33%

Original NVD Description

App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from filenames in several output modes. When ack prints a filename whose basename contains terminal control bytes such as ANSI escape sequences, those bytes reach the terminal unchanged. Version 3.10.0 added a _safe_filename helper that sanitises the filenames printed by -f, -g, the colored match heading, and per-match lines, but the --show-types, -l/-L, and -c paths still emit the raw filename. A file whose name embeds cursor-movement or color escapes can overwrite or recolor earlier terminal output, or be passed unchanged to a downstream consumer.