ZDF
Sign inSign up

Vulnerabilities

Security fix · CVE-2025-69223

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python.

Published Jan 5, 2026 · catalog updated Sep 18, 2026 · AIOHTTP is an asynchronous

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-69223. EPSS is 0.58%. Act only if a listed version of AIOHTTP is an asynchronous is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (AIOHTTP is an asynchronous).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.58%
Remediation
Version ranges on file
Affected products
vendor aio-libs aiohttp < 3.13.3

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a zip bomb to be used to execute a DoS against the AIOHTTP server. An attacker may be able to send a compressed request that when decompressed by AIOHTTP could exhaust the host's memory. This issue is fixed in version 3.13.3.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor aio-libs aiohttp < 3.13.3< 3.13.3

How to fix CVE-2025-69223

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-69223. EPSS is 0.58%. Act only if a listed version of AIOHTTP is an asynchronous is installed.

Which versions are affected?

Compare what you have installed with aio-libs aiohttp < 3.13.3 < 3.13.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.58%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 5, 2026 · EUVD

    Detected

    AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a zip bomb to be used to execute a DoS against the AIOHTTP server. An attacker may be able to send a compressed request that when decompressed by AIOHTTP could exhaust the host's memory. This issue is fixed in version 3.13.3.

  2. Sep 18, 2026 · EUVD

    Updated

    AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a zip bomb to be used to execute a DoS against the AIOHTTP server. An attacker may be able to send a compressed request that when decompressed by AIOHTTP could exhaust the host's memory. This issue is fixed in version 3.13.3.

Sources

  • CVE.orgVulnerability recordCVE-2025-69223

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-69223

    30-day exploitation probability 0.58%

    first.org
  • EUVDVulnerability recordEUVD-2025-206229

    AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a zip bomb to be used to execute a DoS against the AIOHTTP server. An attacker may be able to send a compressed request that when decompressed by AIOHTTP could exhaust

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 29, 2026
  • FIRST EPSSOct 29, 2026
  • EUVDOct 28, 2026