CVE-2026-22263 (GCVE-0-2026-22263)

Vulnerability from cvelistv5 – Published: 2026-01-27 18:27 – Updated: 2026-01-27 19:56
VLAI?
Title
Suricata http1: quadratic complexity in headers parsing over multiple packets
Summary
Suricata is a network IDS, IPS and NSM engine. Starting in version 8.0.0 and prior to version 8.0.3, inefficiency in http1 headers parsing can lead to slowdown over multiple packets. Version 8.0.3 patches the issue. No known workarounds are available.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-1050 - Excessive Platform Resource Consumption within a Loop
Assigner
References
Impacted products
Vendor Product Version
OISF suricata Affected: >= 8.0.0, < 8.0.3
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-22263",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-27T19:52:05.707993Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-27T19:56:34.976Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "suricata",
          "vendor": "OISF",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.0.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Suricata is a network IDS, IPS and NSM engine. Starting in version 8.0.0 and prior to version 8.0.3, inefficiency in http1 headers parsing can lead to slowdown over multiple packets. Version 8.0.3 patches the issue. No known workarounds are available."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1050",
              "description": "CWE-1050: Excessive Platform Resource Consumption within a Loop",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-27T18:27:45.351Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/OISF/suricata/security/advisories/GHSA-rwc5-hxj6-hwx7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/OISF/suricata/security/advisories/GHSA-rwc5-hxj6-hwx7"
        },
        {
          "name": "https://github.com/OISF/suricata/commit/018a377f74e3eb2b042c6f783ad9043060923428",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/OISF/suricata/commit/018a377f74e3eb2b042c6f783ad9043060923428"
        },
        {
          "name": "https://redmine.openinfosecfoundation.org/issues/8201",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://redmine.openinfosecfoundation.org/issues/8201"
        }
      ],
      "source": {
        "advisory": "GHSA-rwc5-hxj6-hwx7",
        "discovery": "UNKNOWN"
      },
      "title": "Suricata http1: quadratic complexity in headers parsing over multiple packets"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-22263",
    "datePublished": "2026-01-27T18:27:45.351Z",
    "dateReserved": "2026-01-07T05:19:12.923Z",
    "dateUpdated": "2026-01-27T19:56:34.976Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-22263\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-01-27T19:16:14.490\",\"lastModified\":\"2026-01-29T21:00:55.190\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Suricata is a network IDS, IPS and NSM engine. Starting in version 8.0.0 and prior to version 8.0.3, inefficiency in http1 headers parsing can lead to slowdown over multiple packets. Version 8.0.3 patches the issue. No known workarounds are available.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1050\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.0.0\",\"versionEndExcluding\":\"8.0.3\",\"matchCriteriaId\":\"E7DA8362-52A2-4ACC-83F7-CA2E77AE89C6\"}]}]}],\"references\":[{\"url\":\"https://github.com/OISF/suricata/commit/018a377f74e3eb2b042c6f783ad9043060923428\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/OISF/suricata/security/advisories/GHSA-rwc5-hxj6-hwx7\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://redmine.openinfosecfoundation.org/issues/8201\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Permissions Required\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-22263\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-27T19:52:05.707993Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-27T19:56:29.097Z\"}}], \"cna\": {\"title\": \"Suricata http1: quadratic complexity in headers parsing over multiple packets\", \"source\": {\"advisory\": \"GHSA-rwc5-hxj6-hwx7\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"OISF\", \"product\": \"suricata\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 8.0.0, \u003c 8.0.3\"}]}], \"references\": [{\"url\": \"https://github.com/OISF/suricata/security/advisories/GHSA-rwc5-hxj6-hwx7\", \"name\": \"https://github.com/OISF/suricata/security/advisories/GHSA-rwc5-hxj6-hwx7\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/OISF/suricata/commit/018a377f74e3eb2b042c6f783ad9043060923428\", \"name\": \"https://github.com/OISF/suricata/commit/018a377f74e3eb2b042c6f783ad9043060923428\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://redmine.openinfosecfoundation.org/issues/8201\", \"name\": \"https://redmine.openinfosecfoundation.org/issues/8201\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Suricata is a network IDS, IPS and NSM engine. Starting in version 8.0.0 and prior to version 8.0.3, inefficiency in http1 headers parsing can lead to slowdown over multiple packets. Version 8.0.3 patches the issue. No known workarounds are available.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1050\", \"description\": \"CWE-1050: Excessive Platform Resource Consumption within a Loop\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-01-27T18:27:45.351Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-22263\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-27T19:56:34.976Z\", \"dateReserved\": \"2026-01-07T05:19:12.923Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-01-27T18:27:45.351Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.