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TI-2026-36360 Aliases CVE-2026-49147GHSA-p4vj-7pqg-xhr6

App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences…

Priority LOW 39CWE-150Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00488 42nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PETDANCEApp::Ackup to 3.10.0—No fix listedCNA
  • App::Ack VendorPETDANCE Affected up to 3.10.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-49147
  2. 2026-10-03 Alias added: GHSA-p4vj-7pqg-xhr6

References

  • TI-2026-36359 Resource allocation without limits in PETDANCE App::Ack CVSS 3.1HIGH 7.5
  • TI-2026-36358 Untrusted search path in PETDANCE App::Ack CVSS 3.1HIGH 7.5

Sources