CVE-2025-69230: Aiohttp AIOHTTP Vulnerable To Cookie Parser Vulnerability

LOW
Advisory Identifier: GHSA-fh55-r93g-j68g
Share
CWE-779
Published
Advisory Summary

CVE-2025-69230 is a LOW aiohttp vulnerable to cookie parser vulnerability (CWE-779: Logging of Excessive Data) affecting Aiohttp libraries in the PyPI ecosystem. The issue involves aiohttp vulnerable to cookie parser warning storm. Remediation is available by upgrading affected packages to version 3.13.3.

CVE-2025-69230 at a Glance

CVE Identifier CVE-2025-69230
GHSA Identifier GHSA-fh55-r93g-j68g
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-779: Logging of Excessive Data
Affected Product Aiohttp
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2025-69230

To remediate this vulnerability, upgrade all affected Aiohttp dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

aiohttp fixed: 3.13.3 
pip install aiohttp>=3.13.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show aiohttp

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-69230, inspect your installed packages using pip:

pip show aiohttp

Analyze the terminal output to locate any version of Aiohttp in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.13.3), your application is affected.

Note: The pip show aiohttp command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-779: Logging of Excessive Data, where the product logs too much information, making log files hard to process and possibly hindering recovery efforts or forensic analysis after an attack. In Aiohttp, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary Reading multiple invalid cookies can lead to a logging storm. ### Impact If the ``cookies`` attribute is accessed in an application, then an attacker may be able to trigger a storm of warning-level logs using a specially crafted Cookie header. ---- Patch: https://github.com/aio-libs/aiohttp/commit/64629a0834f94e46d9881f4e99c41a137e1f3326

CVE-2025-69230 Affected Aiohttp Versions

1 component(s)
Fixed Versions:
3.13.3
Product / Package Ecosystem Affected Versions Fixed Version
aiohttp
pypi/aiohttp
PyPI
< 3.13.3
3.13.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-fh55-r93g-j68g
NVD — CVE-2025-69230 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-69230
Security Fix Commit FIX COMMIT
https://github.com/aio-libs/aiohttp/commit/64629a0834f94e46d9881f4e99c41a137e1f3326
Aiohttp Source Repository REPOSITORY
https://github.com/aio-libs/aiohttp

Frequently Asked Questions

What is CVE-2025-69230?
CVE-2025-69230 is a security vulnerability in Aiohttp involving AIOHTTP Vulnerable to Cookie Parser Warning Storm under CWE-779: Logging of Excessive Data.
Which Aiohttp versions are affected?
Affected versions include releases prior to 3.13.3 across affected packages: aiohttp.
What version fixes CVE-2025-69230?
Upgrading to 3.13.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is aiohttp affected?
Yes, aiohttp is affected in releases prior to 3.13.3. Upgrade your dependency to 3.13.3 or later.
What CWE is associated with CVE-2025-69230?
CVE-2025-69230 is classified under CWE-779: Logging of Excessive Data (The product logs too much information, making log files hard to process and possibly hindering recovery efforts or forensic analysis after an attack.).
How can I check PyPI dependencies for CVE-2025-69230?
Run the dependency tree command: 'pip show aiohttp'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fh55-r93g-j68g",
  "modified" : "2026-01-06T16:07:02Z",
  "published" : "2026-01-05T23:13:46Z",
  "aliases" : [ "CVE-2025-69230" ],
  "summary" : "AIOHTTP Vulnerable to Cookie Parser Warning Storm",
  "details" : "### Summary\nReading multiple invalid cookies can lead to a logging storm.\n\n### Impact\nIf the ``cookies`` attribute is accessed in an application, then an attacker may be able to trigger a storm of warning-level logs using a specially crafted Cookie header.\n\n----\n\nPatch: https://github.com/aio-libs/aiohttp/commit/64629a0834f94e46d9881f4e99c41a137e1f3326",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "aiohttp"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.13.3"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.13.2"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-fh55-r93g-j68g"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-69230"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/aio-libs/aiohttp/commit/64629a0834f94e46d9881f4e99c41a137e1f3326"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/aio-libs/aiohttp"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-779" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-01-05T23:13:46Z",
    "nvd_published_at" : "2026-01-06T00:15:48Z"
  }
}