Vulnerability-Lookup

CVE-2026-69243 (GCVE-0-2026-69243)

Vulnerability from cvelistv5 – Published: 2026-08-03 20:45 – Updated: 2026-08-05 14:54

Title

AIOHTTP: HTTP request smuggling via WebSocket upgrade

Summary

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. A WebSocket upgrade request with a body could cause the parser to switch protocols before the complete request body was received, leaving trailing bytes to be handled as upgraded-protocol or pipelined data rather than normal HTTP body data. This issue is fixed in version 3.14.2.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-05 14:53 UTC

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/aio-libs/aiohttp/security/advi…	x_refsource_CONFIRM
https://github.com/aio-libs/aiohttp/pull/13017	x_refsource_MISC
https://github.com/aio-libs/aiohttp/commit/6ae358…	x_refsource_MISC
https://github.com/aio-libs/aiohttp/releases/tag/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
aio-libs	aiohttp	Affected: < 3.14.2	guessed

Show details on NVD website

JSON

To clipboard

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}

cleanstart-2026-ex36838

Vulnerability from cleanstart

Published

2026-08-13 12:10

Modified

2026-09-04 12:17

Summary

Security fixes in airflow-3 3.3.0-r2

Details

Package airflow-3 version 3.3.0-r2 fixes 7 vulnerabilities: CVE-2026-69244, CVE-2026-59881, CVE-2026-69243, CVE-2026-69247, CVE-2026-69249...

References

URL

Type

https://github.com/apache/airflow

WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "airflow-3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.3.0-r2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.3.0-r2"
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "Package airflow-3 version 3.3.0-r2 fixes 7 vulnerabilities: CVE-2026-69244, CVE-2026-59881, CVE-2026-69243, CVE-2026-69247, CVE-2026-69249...",
  "id": "CLEANSTART-2026-EX36838",
  "modified": "2026-09-04T12:17:57Z",
  "published": "2026-08-13T12:10:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow"
    }
  ],
  "related": [],
  "schema_version": "1.7.3",
  "summary": "Security fixes in airflow-3 3.3.0-r2",
  "upstream": [
    "CVE-2026-69244",
    "CVE-2026-59881",
    "CVE-2026-69243",
    "CVE-2026-69247",
    "CVE-2026-69249",
    "CVE-2026-69248",
    "CVE-2026-59243"
  ]
}

cleanstart-2026-mi51590

Vulnerability from cleanstart

Published

2026-08-13 12:10

Modified

2026-09-04 12:17

Summary

Security fixes in kserve-storage-controller 0.19.0-r0

Details

Package kserve-storage-controller version 0.19.0-r0 fixes 91 vulnerabilities: CVE-2024-12254, CVE-2024-12718, CVE-2024-6232, CVE-2024-7592, CVE-2024-9287...

References

URL

Type

https://github.com/kserve/kserve

WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "kserve-storage-controller"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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          ],
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        }
      ],
      "versions": [
        "0.19.0-r0"
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "Package kserve-storage-controller version 0.19.0-r0 fixes 91 vulnerabilities: CVE-2024-12254, CVE-2024-12718, CVE-2024-6232, CVE-2024-7592, CVE-2024-9287...",
  "id": "CLEANSTART-2026-MI51590",
  "modified": "2026-09-04T12:17:57Z",
  "published": "2026-08-13T12:10:09Z",
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    {
      "type": "WEB",
      "url": "https://github.com/kserve/kserve"
    }
  ],
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  "summary": "Security fixes in kserve-storage-controller 0.19.0-r0",
  "upstream": [
    "CVE-2024-12254",
    "CVE-2024-12718",
    "CVE-2024-6232",
    "CVE-2024-7592",
    "CVE-2024-9287",
    "CVE-2025-4138",
    "CVE-2025-4517",
    "CVE-2023-27043",
    "CVE-2024-6923",
    "CVE-2024-8088",
    "CVE-2025-0938",
    "CVE-2025-4330",
    "CVE-2025-4516",
    "CVE-2024-4032",
    "CVE-2015-2104",
    "CVE-2026-31900",
    "CVE-2026-7246",
    "CVE-2026-39892",
    "CVE-2026-48526",
    "CVE-2026-34993",
    "CVE-2026-47265",
    "CVE-2026-34515",
    "CVE-2026-50269",
    "CVE-2026-54278",
    "CVE-2026-34516",
    "CVE-2026-69244",
    "CVE-2026-54274",
    "CVE-2026-54273",
    "CVE-2026-54275",
    "CVE-2026-34513",
    "CVE-2026-54277",
    "CVE-2026-54279",
    "CVE-2026-54280",
    "CVE-2026-34180",
    "CVE-2026-42305",
    "CVE-2026-42563",
    "CVE-2026-52726",
    "CVE-2026-38974",
    "CVE-2025-69227",
    "CVE-2025-69228",
    "CVE-2025-69223",
    "CVE-2026-32274",
    "CVE-2026-69248",
    "CVE-2026-69247",
    "CVE-2026-69249",
    "CVE-2025-67221",
    "CVE-2026-0994",
    "CVE-2026-59884",
    "CVE-2026-59885",
    "CVE-2026-59886",
    "CVE-2026-42561",
    "CVE-2026-53539",
    "CVE-2026-54282",
    "CVE-2026-48818",
    "CVE-2026-54283",
    "CVE-2026-44431",
    "CVE-2026-21441",
    "CVE-2026-44432",
    "CVE-2026-48525",
    "CVE-2026-48522",
    "CVE-2026-48523",
    "CVE-2026-34520",
    "CVE-2026-59881",
    "CVE-2026-34519",
    "CVE-2026-34514",
    "CVE-2026-34518",
    "CVE-2026-54276",
    "CVE-2026-69243",
    "CVE-2026-34525",
    "CVE-2026-22815",
    "CVE-2026-34517",
    "CVE-2026-47712",
    "CVE-2026-47734",
    "CVE-2025-69224",
    "CVE-2025-69225",
    "CVE-2025-69226",
    "CVE-2025-69230",
    "CVE-2025-69229",
    "CVE-2026-34073",
    "CVE-2026-22701",
    "CVE-2025-68146",
    "CVE-2026-45409",
    "CVE-2026-48524",
    "CVE-2026-28684",
    "CVE-2026-53537",
    "CVE-2026-53538",
    "CVE-2026-53540",
    "CVE-2026-40347",
    "CVE-2026-25645",
    "CVE-2026-48817",
    "CVE-2026-48710"
  ]
}

FKIE_CVE-2026-69243

Vulnerability from fkie_nvd - Published: 2026-08-03 21:16 - Updated: 2026-09-10 20:36

Severity

6.3 (Medium) - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98
	security-advisories@github.com	https://github.com/aio-libs/aiohttp/pull/13017
	security-advisories@github.com	https://github.com/aio-libs/aiohttp/releases/tag/v3.14.2
	security-advisories@github.com	https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mfx4-hv73-q22v

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "aiohttp",
          "vendor": "aio-libs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.14.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. A WebSocket upgrade request with a body could cause the parser to switch protocols before the complete request body was received, leaving trailing bytes to be handled as upgraded-protocol or pipelined data rather than normal HTTP body data. This issue is fixed in version 3.14.2."
    }
  ],
  "id": "CVE-2026-69243",
  "lastModified": "2026-09-10T20:36:14.340",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-69243",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-05T14:53:55.109986Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-03T21:16:42.113",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/aio-libs/aiohttp/pull/13017"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/aio-libs/aiohttp/releases/tag/v3.14.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mfx4-hv73-q22v"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-444"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-MFX4-HV73-Q22V

Vulnerability from github – Published: 2026-08-03 20:46 – Updated: 2026-08-03 20:47

Summary

AIOHTTP: HTTP request smuggling via WebSocket upgrade

Details

Summary

The HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades.

Impact

If using the server-side component, it may be possible for an attacker to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. AIOHTT is unaware of any public exploit code.

Patch: https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98

Severity

6.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.14.1"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "aiohttp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-69243"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-03T20:46:10Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nThe HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades.\n\n### Impact\n\nIf using the server-side component, it may be possible for an attacker to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. AIOHTT is unaware of any public exploit code.\n\n---\n\nPatch: https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98",
  "id": "GHSA-mfx4-hv73-q22v",
  "modified": "2026-08-03T20:47:08Z",
  "published": "2026-08-03T20:46:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mfx4-hv73-q22v"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/pull/13017"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/aio-libs/aiohttp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/releases/tag/v3.14.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "AIOHTTP: HTTP request smuggling via WebSocket upgrade"
}

OPENSUSE-SU-2026:11467-1

Vulnerability from csaf_opensuse - Published: 2026-08-06 00:00 - Updated: 2026-08-06 00:00

Summary

python313-aiohttp-3.14.3-1.1 on GA media

Severity

Moderate

Scope

10 vulnerabilities in this advisory, including CVE-2026-69243.

CVE-2026-69243

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Recommended: 8 products

Open the full advisory

OPENSUSE-SU-2026:21687-1

Vulnerability from csaf_opensuse - Published: 2026-08-30 14:37 - Updated: 2026-08-30 14:37

Summary

Security update for python-aiohttp

Severity

Moderate

Scope

3 vulnerabilities in this advisory, including CVE-2026-69243.

CVE-2026-69243

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Recommended: 4 products

Open the full advisory

PYSEC-2026-3546

Vulnerability from pysec - Published: 2026-08-04 11:34 - Updated: 2026-08-04 13:36

Details

Summary

The HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades.

Impact

Patch: https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98

Severity

6.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Impacted products

Name	purl
aiohttp	pkg:pypi/aiohttp

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "aiohttp",
        "purl": "pkg:pypi/aiohttp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1",
        "0.10.0",
        "0.10.1",
        "0.10.2",
        "0.11.0",
        "0.12.0",
        "0.13.0",
        "0.13.1",
        "0.14.0",
        "0.14.1",
        "0.14.2",
        "0.14.3",
        "0.14.4",
        "0.15.0",
        "0.15.1",
        "0.15.2",
        "0.15.3",
        "0.16.0",
        "0.16.1",
        "0.16.2",
        "0.16.3",
        "0.16.4",
        "0.16.5",
        "0.16.6",
        "0.17.0",
        "0.17.1",
        "0.17.2",
        "0.17.3",
        "0.17.4",
        "0.18.0",
        "0.18.1",
        "0.18.2",
        "0.18.3",
        "0.18.4",
        "0.19.0",
        "0.2",
        "0.20.0",
        "0.20.1",
        "0.20.2",
        "0.21.0",
        "0.21.1",
        "0.21.2",
        "0.21.4",
        "0.21.5",
        "0.21.6",
        "0.22.0",
        "0.22.0a0",
        "0.22.0b0",
        "0.22.0b1",
        "0.22.0b2",
        "0.22.0b3",
        "0.22.0b4",
        "0.22.0b5",
        "0.22.0b6",
        "0.22.1",
        "0.22.2",
        "0.22.3",
        "0.22.4",
        "0.22.5",
        "0.3",
        "0.4",
        "0.4.1",
        "0.4.2",
        "0.4.3",
        "0.4.4",
        "0.5.0",
        "0.6.0",
        "0.6.1",
        "0.6.2",
        "0.6.3",
        "0.6.4",
        "0.6.5",
        "0.7.0",
        "0.7.1",
        "0.7.2",
        "0.7.3",
        "0.8.0",
        "0.8.1",
        "0.8.2",
        "0.8.3",
        "0.8.4",
        "0.9.0",
        "0.9.1",
        "0.9.2",
        "0.9.3",
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.0.5",
        "1.1.0",
        "1.1.1",
        "1.1.2",
        "1.1.3",
        "1.1.4",
        "1.1.5",
        "1.1.6",
        "1.2.0",
        "1.3.0",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "1.3.4",
        "1.3.5",
        "2.0.0",
        "2.0.0rc1",
        "2.0.1",
        "2.0.2",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.0.6",
        "2.0.7",
        "2.1.0",
        "2.2.0",
        "2.2.1",
        "2.2.2",
        "2.2.3",
        "2.2.4",
        "2.2.5",
        "2.3.0",
        "2.3.0a1",
        "2.3.0a2",
        "2.3.0a3",
        "2.3.0a4",
        "2.3.1",
        "2.3.10",
        "2.3.1a1",
        "2.3.2",
        "2.3.2b2",
        "2.3.2b3",
        "2.3.3",
        "2.3.4",
        "2.3.5",
        "2.3.6",
        "2.3.7",
        "2.3.8",
        "2.3.9",
        "3.0.0",
        "3.0.0b0",
        "3.0.0b1",
        "3.0.0b2",
        "3.0.0b3",
        "3.0.0b4",
        "3.0.1",
        "3.0.2",
        "3.0.3",
        "3.0.4",
        "3.0.5",
        "3.0.6",
        "3.0.7",
        "3.0.8",
        "3.0.9",
        "3.1.0",
        "3.1.1",
        "3.1.2",
        "3.1.3",
        "3.10.0",
        "3.10.0b1",
        "3.10.0rc0",
        "3.10.1",
        "3.10.10",
        "3.10.11",
        "3.10.11rc0",
        "3.10.2",
        "3.10.3",
        "3.10.4",
        "3.10.5",
        "3.10.6",
        "3.10.6rc0",
        "3.10.6rc1",
        "3.10.6rc2",
        "3.10.7",
        "3.10.8",
        "3.10.9",
        "3.11.0",
        "3.11.0b0",
        "3.11.0b1",
        "3.11.0b2",
        "3.11.0b3",
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        "3.11.0b5",
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        "3.11.0rc2",
        "3.11.1",
        "3.11.10",
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        "3.11.12",
        "3.11.13",
        "3.11.14",
        "3.11.15",
        "3.11.16",
        "3.11.17",
        "3.11.18",
        "3.11.2",
        "3.11.3",
        "3.11.4",
        "3.11.5",
        "3.11.6",
        "3.11.7",
        "3.11.8",
        "3.11.9",
        "3.12.0",
        "3.12.0b0",
        "3.12.0b1",
        "3.12.0b2",
        "3.12.0b3",
        "3.12.0rc0",
        "3.12.0rc1",
        "3.12.1",
        "3.12.10",
        "3.12.11",
        "3.12.12",
        "3.12.13",
        "3.12.14",
        "3.12.15",
        "3.12.1rc0",
        "3.12.2",
        "3.12.3",
        "3.12.4",
        "3.12.6",
        "3.12.7",
        "3.12.7rc0",
        "3.12.8",
        "3.12.9",
        "3.13.0",
        "3.13.1",
        "3.13.2",
        "3.13.3",
        "3.13.4",
        "3.13.5",
        "3.14.0",
        "3.14.1",
        "3.2.0",
        "3.2.1",
        "3.3.0",
        "3.3.0a0",
        "3.3.1",
        "3.3.2",
        "3.3.2a0",
        "3.4.0",
        "3.4.0a0",
        "3.4.0a3",
        "3.4.0b1",
        "3.4.0b2",
        "3.4.1",
        "3.4.2",
        "3.4.3",
        "3.4.4",
        "3.5.0",
        "3.5.0a1",
        "3.5.0b1",
        "3.5.0b2",
        "3.5.0b3",
        "3.5.1",
        "3.5.2",
        "3.5.3",
        "3.5.4",
        "3.6.0",
        "3.6.0a0",
        "3.6.0a1",
        "3.6.0a11",
        "3.6.0a12",
        "3.6.0a2",
        "3.6.0a3",
        "3.6.0a4",
        "3.6.0a5",
        "3.6.0a6",
        "3.6.0a7",
        "3.6.0a8",
        "3.6.0a9",
        "3.6.0b0",
        "3.6.1",
        "3.6.1b3",
        "3.6.1b4",
        "3.6.2",
        "3.6.2a0",
        "3.6.2a1",
        "3.6.2a2",
        "3.6.3",
        "3.7.0",
        "3.7.0b0",
        "3.7.0b1",
        "3.7.1",
        "3.7.2",
        "3.7.3",
        "3.7.4",
        "3.7.4.post0",
        "3.8.0",
        "3.8.0a7",
        "3.8.0b0",
        "3.8.1",
        "3.8.2",
        "3.8.3",
        "3.8.4",
        "3.8.5",
        "3.8.6",
        "3.9.0",
        "3.9.0b0",
        "3.9.0b1",
        "3.9.0rc0",
        "3.9.1",
        "3.9.2",
        "3.9.3",
        "3.9.4",
        "3.9.4rc0",
        "3.9.5"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-69243",
    "GHSA-mfx4-hv73-q22v"
  ],
  "details": "### Summary\n\nThe HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades.\n\n### Impact\n\nIf using the server-side component, it may be possible for an attacker to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. AIOHTT is unaware of any public exploit code.\n\n---\n\nPatch: https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98",
  "id": "PYSEC-2026-3546",
  "modified": "2026-08-04T13:36:11.952010Z",
  "published": "2026-08-04T11:34:47.269769Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mfx4-hv73-q22v"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/pull/13017"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/aio-libs/aiohttp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/releases/tag/v3.14.2"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/aiohttp"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-mfx4-hv73-q22v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69243"
    }
  ],
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "AIOHTTP: HTTP request smuggling via WebSocket upgrade"
}

RHSA-2026:54760

Vulnerability from csaf_redhat - Published: 2026-08-13 19:46 - Updated: 2026-09-14 15:57

Summary

Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage

Severity

Important

Scope

18 vulnerabilities in this advisory, including CVE-2026-69243.

CVE-2026-69243

A flaw was found in AIOHTTP, an asynchronous HTTP client/server framework. This vulnerability allows a remote attacker to perform HTTP request smuggling due to an edge case in the WebSocket upgrade procedure. When a WebSocket upgrade request includes a body, the parser may switch protocols before the entire body is received. This leaves trailing data to be processed incorrectly, potentially enabling an attacker to bypass security mechanisms or gain unauthorized access to resources.

7.0 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L

Fixed: 2 products Known not affected: 2 products

https://access.redhat.com/errata/RHSA-2026:54760

Open the full advisory

RHSA-2026:59135

Vulnerability from csaf_redhat - Published: 2026-08-24 16:36 - Updated: 2026-09-14 14:53

Summary

Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update

Severity

Important

Scope

17 vulnerabilities in this advisory, including CVE-2026-69243.

CVE-2026-69243

7.0 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L

Fixed: 10 products Known not affected: 84 products

https://access.redhat.com/errata/RHSA-2026:59135

Open the full advisory

RHSA-2026:59136

Vulnerability from csaf_redhat - Published: 2026-08-24 16:39 - Updated: 2026-09-14 14:53

Summary

Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update

Severity

Important

Scope

19 vulnerabilities in this advisory, including CVE-2026-69243.

CVE-2026-69243

7.0 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L

Fixed: 17 products Known not affected: 143 products

https://access.redhat.com/errata/RHSA-2026:59136

Open the full advisory

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-69243 (GCVE-0-2026-69243)

Vulnerability from cleanstart

Vulnerability from cleanstart

Summary

Impact

Summary

Impact

Tags

Sightings

Nomenclature