CVE-2025-69230
mediumpriority · track · 21EPSS 0.004 · 30 %ileDEEURUUSEPSS · scored 2026-10-26
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, reading multiple invalid cookies can lead to a logging storm. 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. This issue is fixed in 3.13.3.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedpython311-aiohttp-0:3.13.3-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython311-aiohttp-0:3.13.3-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython311-aiohttp-0:3.13.3-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython311-aiohttp-0:3.13.3-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython312-aiohttp-0:3.13.3-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython312-aiohttp-0:3.13.3-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython312-aiohttp-0:3.13.3-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython312-aiohttp-0:3.13.3-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython313-aiohttp-0:3.13.3-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython313-aiohttp-0:3.13.3-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython313-aiohttp-0:3.13.3-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedpython313-aiohttp-0:3.13.3-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–6.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- openSUSE-SU-2026:10025-1python311-aiohttp-3.13.3-1.1 on GA media2026-01-09csaf · suse_csafDE
python311-aiohttp-3.13.3-1.1 on GA media
- GHSA-fh55-r93g-j68gAIOHTTP Vulnerable to Cookie Parser Warning Storm2026-01-05ghsa · osvUS
### 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
- PYSEC-2026-1105AIOHTTP Vulnerable to Cookie Parser Warning Storm2026-07-07vendor · osvUS
### 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
also known as (7)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://docs.aiohttp.org/en/stable/Patchcnnvd
- https://github.com/aio-libs/aiocnnvd
- https://vigilance.fr/vulnerability/AIOHTTP-overload-via-Multiple-Cookies-50009cnnvd
- https://github.com/aio-libs/aiohttp/commit/64629a0834f94e46d9881f4e99c41a137e1f3326enisa_euvd
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-fh55-r93g-j68genisa_euvd
- https://github.com/aio-libs/aiohttp/commit/64629a0834f94e46d9881f4e99c41a137e1f3326Patchnvd
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-fh55-r93g-j68gPatchVendor Advisorynvd
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