CVE-2026-49147

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://metacpan.org/release/PETDANCE/ack-v3.10.0/source/Changes
http://www.openwall.com/lists/oss-security/2026/07/08/9

Configurations

No configuration.

History

08 Jul 2026, 20:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/07/08/9 -

08 Jul 2026, 16:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

08 Jul 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-08 15:16

Updated : 2026-07-08 20:16

NVD link : CVE-2026-49147

Mitre link : CVE-2026-49147

CVE.ORG link : CVE-2026-49147

JSON object : View

Products Affected

No product.

CWE

CWE-150

Improper Neutralization of Escape, Meta, or Control Sequences

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