CVE-2026-111063

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.

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Weakness Type (CWE)

CWE-311 CWE-311

CWE-1004 CWE-1004

References

Other References

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

Frequently Asked Questions

What is CVE-2026-111063? +

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.

How do I check if I'm vulnerable to CVE-2026-111063? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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