Lucene search
+L

PYSEC-2026-237

🗓️ 22 Jun 2026 18:16:46Reported by Python Packaging AdvisoryType 
pypa
 pypa
🔗 github.com👁 5 Views

AIOHTTP before 3.14.1 allows TLS SNI bypass on reusing connections with per-request server_hostname.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-54275
22 Jun 202616:34
attackerkb
Chainguard
CVE-2026-54275 vulnerabilities
16 Jun 202620:22
cgr
CVE
CVE-2026-54275
22 Jun 202616:34
cve
Cvelist
CVE-2026-54275 AIOHTTP: TLS Server Hostname Override Is Ignored When Reusing HTTPS Connections
22 Jun 202616:34
cvelist
Debian CVE
CVE-2026-54275
22 Jun 202616:34
debiancve
EUVD
EUVD-2026-38312
22 Jun 202616:34
euvd
Github Security Blog
aiohttp: TLS Server Hostname Override Is Ignored When Reusing HTTPS Connections
15 Jun 202620:11
github
NVD
CVE-2026-54275
22 Jun 202618:16
nvd
OPENSUSE Linux
python311-aiohttp-3.14.1-1.1 on GA media (moderate)
25 Jun 202600:00
opensuse
OSV
CGA-7RC4-CR5C-MXF4
16 Jun 202623:30
osv
Rows per page
Vulners
Node
pypiaiohttpRange03.14.1

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

27 Jun 2026 10:27Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
CVSS 46.9
EPSS0.00266
SSVC
5