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CVE-2026-56763: Improperly Controlled Modification of Object Prototype Attributes

🗓️ 11 Jul 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Hono before 4.12.7 allows prototype pollution via __proto__ keys in parseBody.

Related
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-56763
11 Jul 202614:43
–circl
cve
CVE
CVE-2026-56763
11 Jul 202613:00
–cve
cvelist
Cvelist
CVE-2026-56763 Hono - Prototype Pollution via __proto__ Key in parseBody with dot Option
11 Jul 202613:00
–cvelist
euvd
EUVD
EUVD-2026-43173
11 Jul 202613:00
–euvd
nvd
NVD
CVE-2026-56763
11 Jul 202614:16
–nvd
osv
OSV
CGA-4HRG-7QGG-W66J
25 Sep 202612:51
–osv
osv
OSV
CGA-5XG3-7GQ2-V9W6
25 Sep 202613:25
–osv
osv
OSV
CGA-7F77-93X4-FQMC
25 Sep 202604:03
–osv
osv
OSV
CGA-HPVR-JM49-G6R5
25 Sep 202611:59
–osv
osv
OSV
CGA-J5XV-7FQ7-FM82
25 Sep 202604:49
–osv
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14 Jul 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.8
CVSS 46.3
EPSS0.00273
SSVC
0