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CVE-2026-111063

AIOHTTP: Secure attribute not enforced for shared cookie

MEDIUM
6.3
CVSS Score
Published: October 19, 2026 at 04:44 PM UTC
Updated: October 22, 2026 at 09:17 PM UTC
1 product affected across 1 vendorAiohttp

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the Secure attribute for a shared cookie is not enforced. An attacker can consequently cause a shared cookie marked Secure to be sent with an unencrypted request. This issue is fixed in version 3.14.4.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Aiohttp· Aio Libspypi
90%
v < 3.14.4

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_CONFIRM
Source: cverecord
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-494j-54xm-rwp3
x_refsource_MISC
Source: cverecord
https://github.com/aio-libs/aiohttp/commit/999c356d61e966faffa97b06ab0d0455226d36c5
x_refsource_MISC
Source: cverecord
https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4

SSVC — Action Prioritization

SSVCNo known exploitAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMGitHub_M
Vector?

Quick Info

StatusUNDERGOING ANALYSIS
CWE
CWE-311CWE-1004

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