Vulnerability-Lookup

CVE-2026-49146 (GCVE-0-2026-49146)

Vulnerability from cvelistv5 – Published: 2026-07-08 14:55 – Updated: 2026-07-08 17:31

Title

App::Ack versions before 3.10.0 for Perl allow memory exhaustion via an unbounded context value in a project .ackrc

Summary

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.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-08 15:22 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 64/100 over 273 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/beyondgrep/ack3/commit/45ff5fe…	patch
https://metacpan.org/release/PETDANCE/ack-v3.10.0…	release-notes
http://www.openwall.com/lists/oss-security/2026/07/08/8

Impacted products

1 product

Vendor	Product	Version	CPE status
PETDANCE	App::Ack	Affected: 0 , < 3.10.0 (custom)	guessed

Credits

Michał Majchrowicz (AFINE) Marcin Wyczechowski (AFINE)

Show details on NVD website

JSON

To clipboard

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              "attackVector": "NETWORK",
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              "baseScore": 7.5,
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              "confidentialityImpact": "NONE",
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        }
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        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to ack 3.10.0 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-06-07T00:00:00.000Z",
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}

FKIE_CVE-2026-49146

Vulnerability from fkie_nvd - Published: 2026-07-08 15:16 - Updated: 2026-07-08 20:16

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/beyondgrep/ack3/commit/45ff5fe77dbd96f7332f31943102291f878f30b8.patch
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/PETDANCE/ack-v3.10.0/source/Changes
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/07/08/8

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "ack",
          "product": "App::Ack",
          "programFiles": [
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          ],
          "programRoutines": [
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            }
          ],
          "repo": "https://github.com/beyondgrep/ack3",
          "vendor": "PETDANCE",
          "versions": [
            {
              "lessThan": "3.10.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
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    }
  ],
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  ],
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  "lastModified": "2026-07-08T20:16:50.503",
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      ],
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      "type": "Secondary"
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  ]
}

GHSA-HF7W-MCPW-97MF

Vulnerability from github – Published: 2026-07-08 15:32 – Updated: 2026-07-08 21:30

Details

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.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-49146"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-08T15:16:27Z",
    "severity": "HIGH"
  },
  "details": "App::Ack versions before 3.10.0 for Perl allow memory exhaustion via an unbounded context value in a project .ackrc.\n\nack 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.\n\nA project .ackrc committed to an untrusted repository can abort ack with an out-of-memory condition.",
  "id": "GHSA-hf7w-mcpw-97mf",
  "modified": "2026-07-08T21:30:26Z",
  "published": "2026-07-08T15:32:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49146"
    },
    {
      "type": "WEB",
      "url": "https://github.com/beyondgrep/ack3/commit/45ff5fe77dbd96f7332f31943102291f878f30b8.patch"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/PETDANCE/ack-v3.10.0/source/Changes"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/08/8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

OPENSUSE-SU-2026:10965-1

Vulnerability from csaf_opensuse - Published: 2026-06-08 00:00 - Updated: 2026-09-20 21:48

Summary

ack-3.10.0-1.1 on GA media

Severity

Moderate

Scope

3 vulnerabilities in this advisory, including CVE-2026-49146.

CVE-2026-49146

Recommended: 8 products

Open the full advisory

UBUNTU-CVE-2026-49146 (CVE-2026-49146)

Vulnerability from osv_ubuntu – Published: 2026-07-08 15:16 – Updated: 2026-10-17 09:44 – Source website

Details

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-49146	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-49146	REPORT
	https://lists.security.metacpan.org/cve-announce/…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ack",
            "binary_version": "2.22-1"
          },
          {
            "binary_name": "ack-grep",
            "binary_version": "2.22-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ack",
        "purl": "pkg:deb/ubuntu/ack@2.22-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.22-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ack",
            "binary_version": "3.3.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "ack",
        "purl": "pkg:deb/ubuntu/ack@3.3.1-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.2-1",
        "3.1.3-1",
        "3.2.0-1",
        "3.3.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ack",
            "binary_version": "3.5.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ack",
        "purl": "pkg:deb/ubuntu/ack@3.5.0-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.0-1",
        "3.5.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ack",
            "binary_version": "3.7.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "ack",
        "purl": "pkg:deb/ubuntu/ack@3.7.0-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.7.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ack",
            "binary_version": "3.8.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "ack",
        "purl": "pkg:deb/ubuntu/ack@3.8.1-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.7.0-1",
        "3.8.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ack",
            "binary_version": "3.8.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "ack",
        "purl": "pkg:deb/ubuntu/ack@3.8.1-1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ack",
            "binary_version": "3.8.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "ack",
        "purl": "pkg:deb/ubuntu/ack@3.8.1-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.1-1"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2026-49146",
  "modified": "2026-10-17T09:44:20Z",
  "published": "2026-07-08T15:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-49146"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-49146"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/41643307/"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-49146"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

CVE-2026-49146 (GCVE-0-2026-49146)

FKIE_CVE-2026-49146

GHSA-HF7W-MCPW-97MF

OPENSUSE-SU-2026:10965-1

UBUNTU-CVE-2026-49146 (CVE-2026-49146)

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