CVE-2026-124077

{
  "etk_id": "ETK-2026-4008",
  "cve_id": "CVE-2026-124077",
  "display_id": "CVE-2026-124077",
  "ghsa_id": "GHSA-26mf-gqw6-894w",
  "euvd_id": "EUVD-2026-120399",
  "status": "published",
  "anchor_state": "anchored",
  "title": "NUL-byte validation flaw in Apache Commons Codec GitIdentifiers",
  "summary": "Apache Commons Codec versions 1.22.0 through before 1.23.0 can generate colliding Git tree identifiers when processing tree entry names containing NUL characters. An attacker can cause distinct directory-tree representations to share a Git tree identifier or SWHID if the application accepts such names from external sources or passes them directly to the API.",
  "mitigation": "Upgrade commons-codec to version 1.23.0. Until upgraded, reject NUL characters in externally supplied tree entry names before constructing Git trees.",
  "vendor": "Apache Software Foundation",
  "product": "Apache Commons Codec",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.22.0, < 1.23.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.23.0"
      ],
      "package_name": "commons-codec:commons-codec",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 387120c901f4a75c3112dfdf8877dcdec7ae685d, < 87f6aa2818836998528ff4b0d1ea35545a800ee5"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "87f6aa2818836998528ff4b0d1ea35545a800ee5"
      ],
      "package_name": "Apache Commons Codec",
      "purl": null
    }
  ],
  "cwes": [
    158
  ],
  "cvss_score": null,
  "cvss_src": null,
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 8.381374216666666,
  "t0_at": "2026-11-09T20:10:42.190000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-09T23:52:10.082413+00:00",
      "days": 0.15379505107638888,
      "is_lower_bound": false,
      "measured_at": "2026-11-09T20:10:42.190000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-09T20:10:42.190000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-09T20:10:42.190000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-124077"
    }
  }
}