Vulnerability-Lookup

oesa-2026-1682

Vulnerability from osv_openeuler

Published

2026-03-20 11:10

Modified

2026-08-06 11:10

Summary

python-aiohttp security update

Details

Async http client/server framework (asyncio).

Security Fix(es):

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request smuggling vulnerability. This issue is fixed in version 3.13.3.(CVE-2025-69225)

aiohttp contains a denial-of-service vulnerability when bypassing asserts, allowing attackers to bypass assertion checks through specific methods leading to service unavailability.(CVE-2025-69227)

aiohttp contains a vulnerability when processing large payloads. An attacker can craft large requests to exhaust server resources, leading to denial of service.(CVE-2025-69228)

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, handling of chunked messages can result in excessive blocking CPU usage when receiving a large number of small chunks. If an application makes use of the request.read() method in an endpoint, it may be possible for an attacker to cause the server to spend a moderate amount of blocking CPU time (e.g., 1 second) while processing the request. This could potentially lead to a Denial of Service (DoS) as the server would be unable to handle other requests during that time.(CVE-2025-69229)

Severity

6.6 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-69225	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-69227	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-69228	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-69229	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp1.aarch64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp1.aarch64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp1.aarch64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp1.aarch64.rpm"
        ],
        "src": [
          "python-aiohttp-3.9.3-9.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp1.x86_64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp1.x86_64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp1.x86_64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "python-aiohttp",
        "purl": "pkg:rpm/openEuler/python-aiohttp\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.3-9.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp2.aarch64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp2.aarch64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp2.aarch64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp2.aarch64.rpm"
        ],
        "src": [
          "python-aiohttp-3.9.3-9.oe2403sp2.src.rpm"
        ],
        "x86_64": [
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp2.x86_64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp2.x86_64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp2.x86_64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp2.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP2",
        "name": "python-aiohttp",
        "purl": "pkg:rpm/openEuler/python-aiohttp\u0026distro=openEuler-24.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.3-9.oe2403sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp3.aarch64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp3.aarch64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp3.aarch64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp3.aarch64.rpm"
        ],
        "src": [
          "python-aiohttp-3.9.3-9.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp3.x86_64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp3.x86_64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp3.x86_64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "python-aiohttp",
        "purl": "pkg:rpm/openEuler/python-aiohttp\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.3-9.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "python-aiohttp-debuginfo-3.7.4-6.oe2003sp4.aarch64.rpm",
          "python-aiohttp-debugsource-3.7.4-6.oe2003sp4.aarch64.rpm",
          "python-aiohttp-help-3.7.4-6.oe2003sp4.aarch64.rpm",
          "python3-aiohttp-3.7.4-6.oe2003sp4.aarch64.rpm"
        ],
        "src": [
          "python-aiohttp-3.7.4-6.oe2003sp4.src.rpm"
        ],
        "x86_64": [
          "python-aiohttp-debuginfo-3.7.4-6.oe2003sp4.x86_64.rpm",
          "python-aiohttp-debugsource-3.7.4-6.oe2003sp4.x86_64.rpm",
          "python-aiohttp-help-3.7.4-6.oe2003sp4.x86_64.rpm",
          "python3-aiohttp-3.7.4-6.oe2003sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "python-aiohttp",
        "purl": "pkg:rpm/openEuler/python-aiohttp\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.7.4-6.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "python-aiohttp-debuginfo-3.7.4-7.oe2203sp4.aarch64.rpm",
          "python-aiohttp-debugsource-3.7.4-7.oe2203sp4.aarch64.rpm",
          "python-aiohttp-help-3.7.4-7.oe2203sp4.aarch64.rpm",
          "python3-aiohttp-3.7.4-7.oe2203sp4.aarch64.rpm"
        ],
        "src": [
          "python-aiohttp-3.7.4-7.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "python-aiohttp-debuginfo-3.7.4-7.oe2203sp4.x86_64.rpm",
          "python-aiohttp-debugsource-3.7.4-7.oe2203sp4.x86_64.rpm",
          "python-aiohttp-help-3.7.4-7.oe2203sp4.x86_64.rpm",
          "python3-aiohttp-3.7.4-7.oe2203sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "python-aiohttp",
        "purl": "pkg:rpm/openEuler/python-aiohttp\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.7.4-7.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp1.aarch64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp1.aarch64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp1.aarch64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp1.aarch64.rpm",
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp2.aarch64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp2.aarch64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp2.aarch64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp2.aarch64.rpm",
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp3.aarch64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp3.aarch64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp3.aarch64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp3.aarch64.rpm",
          "python-aiohttp-debuginfo-3.9.3-9.oe2403.aarch64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403.aarch64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403.aarch64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403.aarch64.rpm"
        ],
        "src": [
          "python-aiohttp-3.9.3-9.oe2403sp1.src.rpm",
          "python-aiohttp-3.9.3-9.oe2403sp2.src.rpm",
          "python-aiohttp-3.9.3-9.oe2403sp3.src.rpm",
          "python-aiohttp-3.9.3-9.oe2403.src.rpm"
        ],
        "x86_64": [
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp1.x86_64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp1.x86_64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp1.x86_64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp1.x86_64.rpm",
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp2.x86_64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp2.x86_64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp2.x86_64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp2.x86_64.rpm",
          "python-aiohttp-debuginfo-3.9.3-9.oe2403sp3.x86_64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403sp3.x86_64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403sp3.x86_64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403sp3.x86_64.rpm",
          "python-aiohttp-debuginfo-3.9.3-9.oe2403.x86_64.rpm",
          "python-aiohttp-debugsource-3.9.3-9.oe2403.x86_64.rpm",
          "python-aiohttp-help-3.9.3-9.oe2403.x86_64.rpm",
          "python3-aiohttp-3.9.3-9.oe2403.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS",
        "name": "python-aiohttp",
        "purl": "pkg:rpm/openEuler/python-aiohttp\u0026distro=openEuler-24.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.3-9.oe2403"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Async http client/server framework (asyncio).\r\n\r\nSecurity Fix(es):\n\nAIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there\u0026apos;s a method to exploit a request smuggling vulnerability. This issue is fixed in version 3.13.3.(CVE-2025-69225)\n\naiohttp contains a denial-of-service vulnerability when bypassing asserts, allowing attackers to bypass assertion checks through specific methods leading to service unavailability.(CVE-2025-69227)\n\naiohttp contains a vulnerability when processing large payloads. An attacker can craft large requests to exhaust server resources, leading to denial of service.(CVE-2025-69228)\n\naiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, handling of chunked messages can result in excessive blocking CPU usage when receiving a large number of small chunks. If an application makes use of the `request.read()` method in an endpoint, it may be possible for an attacker to cause the server to spend a moderate amount of blocking CPU time (e.g., 1 second) while processing the request. This could potentially lead to a Denial of Service (DoS) as the server would be unable to handle other requests during that time.(CVE-2025-69229)",
  "id": "OESA-2026-1682",
  "modified": "2026-08-06T11:10:42Z",
  "published": "2026-03-20T11:10:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1682"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-69225"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-69227"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-69228"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-69229"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "python-aiohttp security update",
  "upstream": [
    "CVE-2025-69225",
    "CVE-2025-69227",
    "CVE-2025-69228",
    "CVE-2025-69229"
  ]
}

CVE-2025-69225 (GCVE-0-2025-69225)

Vulnerability from cvelistv5 – Published: 2026-01-05 23:16 – Updated: 2026-01-06 19:02

Title

AIOHTTP Regex Mismatch Allows Unicode in ASCII-Only Protocol Fields

Summary

Severity

2.7 (Low)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-06 14:25 UTC

CWE

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

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/aio-libs/aiohttp/security/advi…	x_refsource_CONFIRM
https://github.com/aio-libs/aiohttp/commit/c7b7a0…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
aio-libs	aiohttp	Affected: < 3.13.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-69225",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-06T14:25:19.119274Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-06T19:02:59.048Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "aiohttp",
          "vendor": "aio-libs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.13.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there\u0027s a method to exploit a request smuggling vulnerability. This issue is fixed in version 3.13.3."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 2.7,
            "baseSeverity": "LOW",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U",
            "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": "2026-01-05T23:16:19.158Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mqqc-3gqh-h2x8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mqqc-3gqh-h2x8"
        },
        {
          "name": "https://github.com/aio-libs/aiohttp/commit/c7b7a044f88c71cefda95ec75cdcfaa4792b3b96",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/aio-libs/aiohttp/commit/c7b7a044f88c71cefda95ec75cdcfaa4792b3b96"
        }
      ],
      "source": {
        "advisory": "GHSA-mqqc-3gqh-h2x8",
        "discovery": "UNKNOWN"
      },
      "title": "AIOHTTP Regex Mismatch Allows Unicode in ASCII-Only Protocol Fields"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-69225",
    "datePublished": "2026-01-05T23:16:19.158Z",
    "dateReserved": "2025-12-29T20:52:59.444Z",
    "dateUpdated": "2026-01-06T19:02:59.048Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-69227 (GCVE-0-2025-69227)

Vulnerability from cvelistv5 – Published: 2026-01-05 23:19 – Updated: 2026-01-06 19:02

Title

AIOHTTP vulnerable to DoS when bypassing asserts

Summary

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow for an infinite loop to occur when assert statements are bypassed, resulting in a DoS attack when processing a POST body. If optimizations are enabled (-O or PYTHONOPTIMIZE=1), and the application includes a handler that uses the Request.post() method, then an attacker may be able to execute a DoS attack with a specially crafted message. This issue is fixed in version 3.13.3.

Severity

6.6 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-06 14:25 UTC

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/aio-libs/aiohttp/security/advi…	x_refsource_CONFIRM
https://github.com/aio-libs/aiohttp/commit/bc1319…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
aio-libs	aiohttp	Affected: < 3.13.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-69227",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-06T14:25:12.409319Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-06T19:02:48.192Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "aiohttp",
          "vendor": "aio-libs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.13.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow for an infinite loop to occur when assert statements are bypassed, resulting in a DoS attack when processing a POST body. If optimizations are enabled (-O or PYTHONOPTIMIZE=1), and the application includes a handler that uses the Request.post() method, then an attacker may be able to execute a DoS attack with a specially crafted message. This issue is fixed in version 3.13.3."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T23:19:31.396Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jj3x-wxrx-4x23",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jj3x-wxrx-4x23"
        },
        {
          "name": "https://github.com/aio-libs/aiohttp/commit/bc1319ec3cbff9438a758951a30907b072561259",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/aio-libs/aiohttp/commit/bc1319ec3cbff9438a758951a30907b072561259"
        }
      ],
      "source": {
        "advisory": "GHSA-jj3x-wxrx-4x23",
        "discovery": "UNKNOWN"
      },
      "title": "AIOHTTP vulnerable to DoS when bypassing asserts"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-69227",
    "datePublished": "2026-01-05T23:19:31.396Z",
    "dateReserved": "2025-12-29T20:53:19.433Z",
    "dateUpdated": "2026-01-06T19:02:48.192Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-69228 (GCVE-0-2025-69228)

Vulnerability from cvelistv5 – Published: 2026-01-05 23:30 – Updated: 2026-01-06 19:02

Title

AIOHTTP vulnerable to denial of service through large payloads

Summary

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a request to be crafted in such a way that an AIOHTTP server's memory fills up uncontrollably during processing. If an application includes a handler that uses the Request.post() method, an attacker may be able to freeze the server by exhausting the memory. This issue is fixed in version 3.13.3.

Severity

6.6 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-06 14:25 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/aio-libs/aiohttp/security/advi…	x_refsource_CONFIRM
https://github.com/aio-libs/aiohttp/commit/b7dbd3…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
aio-libs	aiohttp	Affected: < 3.13.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-69228",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-06T14:25:03.661846Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-06T19:02:29.889Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "aiohttp",
          "vendor": "aio-libs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.13.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a request to be crafted in such a way that an AIOHTTP server\u0027s memory fills up uncontrollably during processing. If an application includes a handler that uses the Request.post() method, an attacker may be able to freeze the server by exhausting the memory. This issue is fixed in version 3.13.3."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T23:30:33.440Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6jhg-hg63-jvvf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6jhg-hg63-jvvf"
        },
        {
          "name": "https://github.com/aio-libs/aiohttp/commit/b7dbd35375aedbcd712cbae8ad513d56d11cce60",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/aio-libs/aiohttp/commit/b7dbd35375aedbcd712cbae8ad513d56d11cce60"
        }
      ],
      "source": {
        "advisory": "GHSA-6jhg-hg63-jvvf",
        "discovery": "UNKNOWN"
      },
      "title": "AIOHTTP vulnerable to denial of service through large payloads"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-69228",
    "datePublished": "2026-01-05T23:30:33.440Z",
    "dateReserved": "2025-12-29T20:53:24.489Z",
    "dateUpdated": "2026-01-06T19:02:29.889Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-69229 (GCVE-0-2025-69229)

Vulnerability from cvelistv5 – Published: 2026-01-05 23:37 – Updated: 2026-01-06 19:02

Title

AIOHTTP vulnerable to DoS through chunked messages

Summary

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, handling of chunked messages can result in excessive blocking CPU usage when receiving a large number of chunks. If an application makes use of the request.read() method in an endpoint, it may be possible for an attacker to cause the server to spend a moderate amount of blocking CPU time (e.g. 1 second) while processing the request. This could potentially lead to DoS as the server would be unable to handle other requests during that time. This issue is fixed in version 3.13.3.

Severity

6.6 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-06 14:24 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/aio-libs/aiohttp/security/advi…	x_refsource_CONFIRM
https://github.com/aio-libs/aiohttp/commit/4ed97a…	x_refsource_MISC
https://github.com/aio-libs/aiohttp/commit/dc3170…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
aio-libs	aiohttp	Affected: < 3.13.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-69229",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-06T14:24:45.403446Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-06T19:02:09.630Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "aiohttp",
          "vendor": "aio-libs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.13.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, handling of chunked messages can result in excessive blocking CPU usage when receiving a large number of chunks. If an application makes use of the request.read() method in an endpoint, it may be possible for an attacker to cause the server to spend a moderate amount of blocking CPU time (e.g. 1 second) while processing the request. This could potentially lead to DoS as the server would be unable to handle other requests during that time. This issue is fixed in version 3.13.3."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T23:37:52.955Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g84x-mcqj-x9qq",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-g84x-mcqj-x9qq"
        },
        {
          "name": "https://github.com/aio-libs/aiohttp/commit/4ed97a4e46eaf61bd0f05063245f613469700229",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/aio-libs/aiohttp/commit/4ed97a4e46eaf61bd0f05063245f613469700229"
        },
        {
          "name": "https://github.com/aio-libs/aiohttp/commit/dc3170b56904bdf814228fae70a5501a42a6c712",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/aio-libs/aiohttp/commit/dc3170b56904bdf814228fae70a5501a42a6c712"
        }
      ],
      "source": {
        "advisory": "GHSA-g84x-mcqj-x9qq",
        "discovery": "UNKNOWN"
      },
      "title": "AIOHTTP vulnerable to DoS through chunked messages"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-69229",
    "datePublished": "2026-01-05T23:37:52.955Z",
    "dateReserved": "2025-12-29T20:53:34.537Z",
    "dateUpdated": "2026-01-06T19:02:09.630Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

oesa-2026-1682

Vulnerability from osv_openeuler

CVE-2025-69225 (GCVE-0-2025-69225)

CVE-2025-69227 (GCVE-0-2025-69227)

CVE-2025-69228 (GCVE-0-2025-69228)

CVE-2025-69229 (GCVE-0-2025-69229)

Tags

Sightings

Nomenclature

Related by attack behaviour