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App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from filenames in several output modes

Type: advisorySources: OSV

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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-49147
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 06:48 UTC · Revision 1

Source evidence

App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from filenames in several output modes

core-osv · Original source

Published 8 Jul 2026, 14:55 UTC

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.

osv:CVE-2026-49147
Complete source record
{
  "id": "b2e889c6981a451b0f8217d63b33500cb86e5d8f22afba4c7c2e0914e3a4451e",
  "url": "https://osv.dev/vulnerability/CVE-2026-49147",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from filenames in several output modes",
    "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.",
    "evidence": "osv:CVE-2026-49147",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-49147",
      "aliases": [
        "CVE-2026-49147"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/beyondgrep/ack3",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "e627c18e77d635b0dad69c77749e9296071b8389"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.10.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.10.0",
            "v3.9.0",
            "v3.8.2",
            "v3.8.1",
            "v3.8.0",
            "v3.6.0",
            "v3.5.0",
            "v3.4.0",
            "v3.1.3",
            "v3.1.2",
            "v3.1.1",
            "v3.1.0",
            "v3.0.3",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0",
            "2.999_08",
            "2.999_07",
            "2.999_06",
            "2.999_05",
            "2.999_04",
            "2.999_02",
            "2.999_01",
            "2.18r",
            "2.18"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49147.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.977900756Z",
      "provider": "osv",
      "references": [
        "https://cpan.org/modules",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49147.json",
        "https://metacpan.org/release/PETDANCE/ack-v3.10.0/source/Changes",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-49147",
        "https://github.com/beyondgrep/ack3"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-150"
        ],
        "cna_assigner": "CPANSec",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49147.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-49147",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518543,
  "published_at": "2026-07-08T14:55:50.232+00:00"
}