CVE-2026-111063: aio-libs aiohttp Missing Encryption of Sensitive Data
CVSS: 6.3v4.0MediumAwaiting analysis
AliasesGHSA-494j-54xm-rwp3
Published 19-10-2026Last modified 19-10-2026
Vulnerability summary
CVE-2026-111063 is a medium (CVSS 6.3) Missing Encryption of Sensitive Data vulnerability in aio-libs aiohttp.
CVSS score
6.3/10
010
Medium · v4.0 (CVE.org)EPSS score
Not scored
0%100%
No EPSS score yetKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 19-10-2026PublishedVulnerability first disclosed.
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.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NSourcesAll 2 agree
- NVDNIST6.3MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Aio-libs1 product
- aiohttp< 3.14.4
PyPI1 product
- aiohttp< 3.14.4
2 vendors · 2 products
References
4 links- github.com/aio-libs/aiohttpPACKAGE