CVE catalog

CVE-2026-49146

App::Ack versions before 3.10.0 for Perl allow memory…

[CVE catalog]

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
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.61% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [
    {
      "name": "ack",
      "status": "vulnerable",
      "release": "sid",
      "version": "3.8.1-1"
    },
    {
      "name": "ack",
      "status": "vulnerable",
      "release": "forky",
      "version": "3.8.1-1"
    },
    {
      "name": "ack",
      "status": "vulnerable",
      "release": "trixie",
      "version": "3.8.1-1"
    },
    {
      "name": "ack",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "3.6.0-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "ack",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "ack",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "ack",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "ack",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "ack",
      "ecosystem": "cpe",
      "fixed_version": "not yet fixed"
    },
    {
      "name": "ack",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.10.0-r0"
            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "3.10.0-r0",
      "provider_record_id": "ALPINE-CVE-2026-49146"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [ack]Unknown
    Details (2)

    • 3.6.0-1 · all · bookworm

      Affected

      nvd · ack · debian · bookworm; nvd · ack · debian · 12

    • 3.6.0-1 · all · bookworm

      Affected

      nvd · ack · debian · bookworm; nvd · ack · debian · 12

[Debian 13 (Trixie)]

  • [ack]Unknown
    Details (2)

    • 3.8.1-1 · all · trixie

      Affected

      nvd · ack · debian · 13

    • 3.8.1-1 · all · trixie

      Affected

      nvd · ack · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]