CVE-2024-52304 (GCVE-0-2024-52304)

Vulnerability from cvelistv5 – Published: 2024-11-18 20:12 – Updated: 2025-11-03 20:45
VLAI
Title
aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions
Summary
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.10.11, the Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. If a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or `AIOHTTP_NO_EXTENSIONS` is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. Version 3.10.11 fixes the issue.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Assigner
References
Impacted products
Vendor Product Version
aio-libs aiohttp Affected: < 3.10.11
Create a notification for this product.
python aiohttp Affected: 0 , < 3.10.11 (custom)
    cpe:2.3:a:python:aiohttp:*:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:python:aiohttp:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "aiohttp",
            "vendor": "python",
            "versions": [
              {
                "lessThan": "3.10.11",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-52304",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-19T15:38:44.530052Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-21T14:07:39.914Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:45:25.646Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "aiohttp",
          "vendor": "aio-libs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.10.11"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.10.11, the Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. If a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or `AIOHTTP_NO_EXTENSIONS` is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. Version 3.10.11 fixes the issue."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-444",
              "description": "CWE-444: Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-18T20:12:48.612Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr"
        },
        {
          "name": "https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71"
        }
      ],
      "source": {
        "advisory": "GHSA-8495-4g3g-x7pr",
        "discovery": "UNKNOWN"
      },
      "title": "aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-52304",
    "datePublished": "2024-11-18T20:12:48.612Z",
    "dateReserved": "2024-11-06T19:00:26.396Z",
    "dateUpdated": "2025-11-03T20:45:25.646Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-52304",
      "date": "2026-06-22",
      "epss": "0.00576",
      "percentile": "0.42863"
    },
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.10.11, the Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. If a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or `AIOHTTP_NO_EXTENSIONS` is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. Version 3.10.11 fixes the issue.\"}, {\"lang\": \"es\", \"value\": \"aiohttp es un framework de trabajo de cliente/servidor HTTP asincr\\u00f3nico para asyncio y Python. Antes de la versi\\u00f3n 3.10.11, el analizador de Python analiza incorrectamente las nuevas l\\u00edneas en las extensiones de fragmentos, lo que puede provocar vulnerabilidades de contrabando de solicitudes en determinadas condiciones. Si se instala una versi\\u00f3n Python pura de aiohttp (es decir, sin las extensiones C habituales) o se habilita `AIOHTTP_NO_EXTENSIONS`, un atacante puede ejecutar un ataque de contrabando de solicitudes para eludir determinados cortafuegos o protecciones de proxy. La versi\\u00f3n 3.10.11 soluciona el problema.\"}]",
      "id": "CVE-2024-52304",
      "lastModified": "2024-11-21T14:15:17.813",
      "metrics": "{\"cvssMetricV40\": [{\"source\": \"security-advisories@github.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"4.0\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\", \"baseScore\": 6.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"vulnerableSystemConfidentiality\": \"NONE\", \"vulnerableSystemIntegrity\": \"LOW\", \"vulnerableSystemAvailability\": \"NONE\", \"subsequentSystemConfidentiality\": \"NONE\", \"subsequentSystemIntegrity\": \"NONE\", \"subsequentSystemAvailability\": \"NONE\", \"exploitMaturity\": \"NOT_DEFINED\", \"confidentialityRequirements\": \"NOT_DEFINED\", \"integrityRequirements\": \"NOT_DEFINED\", \"availabilityRequirements\": \"NOT_DEFINED\", \"modifiedAttackVector\": \"NOT_DEFINED\", \"modifiedAttackComplexity\": \"NOT_DEFINED\", \"modifiedAttackRequirements\": \"NOT_DEFINED\", \"modifiedPrivilegesRequired\": \"NOT_DEFINED\", \"modifiedUserInteraction\": \"NOT_DEFINED\", \"modifiedVulnerableSystemConfidentiality\": \"NOT_DEFINED\", \"modifiedVulnerableSystemIntegrity\": \"NOT_DEFINED\", \"modifiedVulnerableSystemAvailability\": \"NOT_DEFINED\", \"modifiedSubsequentSystemConfidentiality\": \"NOT_DEFINED\", \"modifiedSubsequentSystemIntegrity\": \"NOT_DEFINED\", \"modifiedSubsequentSystemAvailability\": \"NOT_DEFINED\", \"safety\": \"NOT_DEFINED\", \"automatable\": \"NOT_DEFINED\", \"recovery\": \"NOT_DEFINED\", \"valueDensity\": \"NOT_DEFINED\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\"}}]}",
      "published": "2024-11-18T21:15:06.500",
      "references": "[{\"url\": \"https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71\", \"source\": \"security-advisories@github.com\"}, {\"url\": \"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr\", \"source\": \"security-advisories@github.com\"}]",
      "sourceIdentifier": "security-advisories@github.com",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": "[{\"source\": \"security-advisories@github.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-444\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-52304\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2024-11-18T21:15:06.500\",\"lastModified\":\"2025-11-03T21:17:21.180\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.10.11, the Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. If a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or `AIOHTTP_NO_EXTENSIONS` is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. Version 3.10.11 fixes the issue.\"},{\"lang\":\"es\",\"value\":\"aiohttp es un framework de trabajo de cliente/servidor HTTP asincr\u00f3nico para asyncio y Python. Antes de la versi\u00f3n 3.10.11, el analizador de Python analiza incorrectamente las nuevas l\u00edneas en las extensiones de fragmentos, lo que puede provocar vulnerabilidades de contrabando de solicitudes en determinadas condiciones. Si se instala una versi\u00f3n Python pura de aiohttp (es decir, sin las extensiones C habituales) o se habilita `AIOHTTP_NO_EXTENSIONS`, un atacante puede ejecutar un ataque de contrabando de solicitudes para eludir determinados cortafuegos o protecciones de proxy. La versi\u00f3n 3.10.11 soluciona el problema.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":6.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"LOW\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-444\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"3.10.11\",\"matchCriteriaId\":\"7BB56D96-249C-46E4-8C28-D29970BE7898\"}]}]}],\"references\":[{\"url\":\"https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-52304\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-19T15:38:44.530052Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:python:aiohttp:*:*:*:*:*:*:*:*\"], \"vendor\": \"python\", \"product\": \"aiohttp\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"3.10.11\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-19T15:38:37.921Z\"}}], \"cna\": {\"title\": \"aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions\", \"source\": {\"advisory\": \"GHSA-8495-4g3g-x7pr\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 6.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"LOW\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"aio-libs\", \"product\": \"aiohttp\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 3.10.11\"}]}], \"references\": [{\"url\": \"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr\", \"name\": \"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71\", \"name\": \"https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.10.11, the Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. If a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or `AIOHTTP_NO_EXTENSIONS` is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. Version 3.10.11 fixes the issue.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-444\", \"description\": \"CWE-444: Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2024-11-18T20:12:48.612Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-52304\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-21T14:07:39.914Z\", \"dateReserved\": \"2024-11-06T19:00:26.396Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2024-11-18T20:12:48.612Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.