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🛡️ CVE-2025-69230 — aiohttp

🟢 CVSS 2.0 — Low ✅ No Known Exploit CWE-779 OSV
2.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

AIOHTTP Vulnerable to Cookie Parser Warning Storm

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.

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Patch: https://github.com/aio-libs/aiohttp/commit/64629a0834f94e46d9881f4e99c41a137e1f3326

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity low, availability low.

CVSS metrics in full

The score comes from this vector: 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

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Attack requirements: None — no deployment-specific condition has to hold.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Confidentiality impact: None.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2025-69230 is classified as 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.

Affected software

CVE-2025-69230 is recorded against 1 package.

  • aiohttp (fixed in 3.13.3)

Timeline and source

Published on 5 January 2026 and last revised on 7 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)

Other advisories for this package

aiohttp has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-779: Logging of Excessive Data) in other software:

CVE-2025-69230 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity LOW
CVSS Score 2.0
CVSS Vector 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
CWE CWE-779
Public Exploit ✅ No
Source OSV
Published 2026-01-05
Updated 2026-08-20
Modified 2026-07-07

Affected Packages

Software From version Fixed in
aiohttp — 3.13.3

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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