CVE-2026-77622

{
  "etk_id": "ETK-2026-1723",
  "cve_id": "CVE-2026-77622",
  "display_id": "CVE-2026-77622",
  "ghsa_id": "GHSA-663m-7x7m-g4fw",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Unbounded PNG decoding denial of service in Sliver",
  "summary": "Sliver versions before 1.7.6 can consume excessive memory while processing PNG data received by an HTTP listener. An unauthenticated remote attacker can cause loss of service when a reachable HTTP listener is enabled.",
  "mitigation": "Upgrade github.com/BishopFox/sliver to version 1.7.6 or later. Restrict access to HTTP listeners until the upgrade is complete.",
  "vendor": "go",
  "product": "go:github.com/BishopFox/sliver",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.7.6"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "1.7.6"
      ],
      "package_name": "github.com/BishopFox/sliver",
      "purl": "pkg:golang/github.com/BishopFox/sliver"
    }
  ],
  "cwes": null,
  "cvss_score": 8.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/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": 74.17785178333334,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-10-15T22:10:20.007770+00:00",
      "days": -5.401940864861111,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T07:49:07.724319+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-15T22:13:33.966952+00:00",
      "days": -5.399695966921296,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T07:49:07.724319+00:00",
      "url": "https://github.com/Squ1shification/PNGboomer-CVE-2026-77622"
    },
    "trigger_signal": {
      "at": "2026-10-15T20:09:33+00:00",
      "days": -5.485818269606481,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T07:49:07.724319+00:00",
      "url": "https://github.com/advisories/GHSA-663m-7x7m-g4fw"
    }
  }
}