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CVE-2026-6276 stale custom cookie host causes cookie leak

🗓️ 13 May 2026 08:28:19Reported by curlType 
cvelist
 cvelist🔗 www.cve.org👁 37 Views

CVE-2026-6276: Stale Host header leaks cookies on second request reuse.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-6276
13 May 202608:28
–attackerkb
AlpineLinux		CVE-2026-6276
13 May 202608:28
–alpinelinux
CBLMariner		CVE-2026-6276 affecting package curl for versions less than 8.11.1-7
5 Jun 202612:59
–cbl_mariner
Circl		CVE-2026-6276
29 Apr 202607:00
–circl
CNNVD		libcurl 安全漏洞
13 May 202600:00
–cnnvd
curl security advisories		stale custom cookie host causes cookie leak
29 Apr 202608:00
–curl
CVE		CVE-2026-6276
13 May 202608:28
–cve
Debian CVE		CVE-2026-6276
13 May 202608:28
–debiancve
EUVD		EUVD-2026-29928
13 May 202608:28
–euvd
Hacker One		curl: CVE-2026-6276: stale custom cookie host causes cookie leak
14 Apr 202605:45
–hackerone
Rows per page
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]

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13 May 2026 08:28Current
EPSS0.00264
host headercookie leakcurl librarycustom host headereasy handlesecond request
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