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CVE-2026-56709: Reliance on Reverse DNS Resolution for a Security-Critical Action

🗓️ 25 Aug 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Grav before 3.9.2 Host header spoofing in sendInvitationEmail() redirects to attacker domains.

Related
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-56709
25 Aug 202601:30
–cve
cvelist
Cvelist
CVE-2026-56709 Grav before 3.9.2 Host Header Injection via sendInvitationEmail
25 Aug 202601:30
–cvelist
euvd
EUVD
EUVD-2026-65207
25 Aug 202601:30
–euvd
nvd
NVD
CVE-2026-56709
25 Aug 202602:16
–nvd
ptsecurity
Positive Technologies
PT-2026-81136
25 Aug 202600:00
–ptsecurity
vulnrichment
Vulnrichment
CVE-2026-56709 Grav before 3.9.2 Host Header Injection via sendInvitationEmail
25 Aug 202601:30
–vulnrichment

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31 Aug 2026 00:00Current
CVSS 3.17.5
CVSS 48.7
EPSS0.00256
SSVC
0