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aiohttp: Host-Only Cookies Become Domain Cookies After CookieJar Persistence

🗓️ 15 Jun 2026 20:08:51Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 7 Views

Host-only cookies lose host-only status after CookieJar save and load, becoming domain cookies and sent to subdomains.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-54279
22 Jun 202616:32
attackerkb
Chainguard
CVE-2026-54279 vulnerabilities
16 Jun 202620:22
cgr
CVE
CVE-2026-54279
22 Jun 202616:32
cve
Cvelist
CVE-2026-54279 AIOHTTP: Host-Only Cookies Become Domain Cookies After CookieJar Persistence
22 Jun 202616:32
cvelist
Debian CVE
CVE-2026-54279
22 Jun 202616:32
debiancve
EUVD
EUVD-2026-38310
22 Jun 202616:32
euvd
NVD
CVE-2026-54279
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-83MV-GW9X-G6WR
16 Jun 202623:30
osv
OSV
DEBIAN-CVE-2026-54279
22 Jun 202618:16
osv
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aiohttpaiohttpRange3.14.0pip

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15 Jun 2026 20:08Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.5
CVSS 45.3
EPSS0.00279
SSVC
7