CVE-2026-128242

{
  "etk_id": "ETK-2026-4369",
  "cve_id": "CVE-2026-128242",
  "display_id": "CVE-2026-128242",
  "ghsa_id": "GHSA-gxj9-vqfq-hp64",
  "euvd_id": "EUVD-2026-125050",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unbounded body decompression in actix-http and actix-web",
  "summary": "actix-http and actix-web releases before the fixed versions can consume excessive memory and CPU while expanding compressed HTTP bodies. A remote attacker may cause denial of service if they can send compressed requests to affected extractors or provide compressed responses processed by an awc client.",
  "mitigation": "Upgrade actix-http to 3.20.1 or later and actix-web to 4.18.2 or later. Until upgraded, restrict untrusted compressed request bodies and responses where practical.",
  "vendor": "actix",
  "product": "actix-http",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 3.20.1"
      ],
      "ecosystem": "rust",
      "fixed_versions": [
        ">= 3.20.1"
      ],
      "package_name": "actix-http",
      "purl": "pkg:cargo/actix-http"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 4.18.2"
      ],
      "ecosystem": "rust",
      "fixed_versions": [
        ">= 4.18.2"
      ],
      "package_name": "actix-web",
      "purl": "pkg:cargo/actix-web"
    }
  ],
  "cwes": [
    409
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 11.742734316666667,
  "t0_at": "2026-11-13T09:33:45.553000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-13T09:56:21.707439+00:00",
      "days": 0.01569623193287037,
      "is_lower_bound": false,
      "measured_at": "2026-11-13T09:33:45.553000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-11-06T12:17:07+00:00",
      "days": -6.886557326388889,
      "is_lower_bound": false,
      "measured_at": "2026-11-13T09:33:45.553000+00:00",
      "url": "https://github.com/actix/actix-web/security/advisories/GHSA-qph8-7859-gq2f"
    },
    "trigger_signal": {
      "at": "2026-11-06T12:17:07+00:00",
      "days": -6.886557326388889,
      "is_lower_bound": false,
      "measured_at": "2026-11-13T09:33:45.553000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-128242"
    }
  }
}