FKIE_CVE-2026-63452

Vulnerability from fkie_nvd - Published: 2026-09-18 21:17 - Updated: 2026-09-23 18:12
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the HTTP/1 parser limits decompression work per transaction but does not limit how many small brotli compression bombs a single flow can submit. With response-body-decompress-layer-limit enabled, repeated compressed responses make the decompression paths in rust/htp perform expensive work for every transaction, degrading packet processing and potentially causing loss of monitoring visibility or denial of service. This issue is fixed in version 8.0.6.
References
security-advisories@github.comhttps://github.com/OISF/suricata/commit/392b6aee2971a4b5e573850f5d832112509bcb5f
security-advisories@github.comhttps://github.com/OISF/suricata/commit/e369bf29ee5bbd0cdf6a98dc4a3357ba43c86a88
security-advisories@github.comhttps://github.com/OISF/suricata/releases/tag/suricata-8.0.6
security-advisories@github.comhttps://github.com/OISF/suricata/security/advisories/GHSA-j9cx-w9xm-5x84
security-advisories@github.comhttps://redmine.openinfosecfoundation.org/issues/8694
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "suricata",
          "vendor": "OISF",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.0.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the HTTP/1 parser limits decompression work per transaction but does not limit how many small brotli compression bombs a single flow can submit. With response-body-decompress-layer-limit enabled, repeated compressed responses make the decompression paths in rust/htp perform expensive work for every transaction, degrading packet processing and potentially causing loss of monitoring visibility or denial of service. This issue is fixed in version 8.0.6."
    }
  ],
  "id": "CVE-2026-63452",
  "lastModified": "2026-09-23T18:12:04.247",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-63452",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-21T18:19:39.620230Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-18T21:17:04.667",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/commit/392b6aee2971a4b5e573850f5d832112509bcb5f"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/commit/e369bf29ee5bbd0cdf6a98dc4a3357ba43c86a88"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/security/advisories/GHSA-j9cx-w9xm-5x84"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://redmine.openinfosecfoundation.org/issues/8694"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-409"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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