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CVE-2026-84368: Improperly Controlled Modification of Object Prototype Attributes

🗓️ 01 Sep 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Prototype pollution in joi up to 17.13.6 and 18.2.5 via untrusted schema configuration.

Related
Refs
ReporterTitlePublishedViews
Family
cgr
Chainguard
CVE-2026-84368 vulnerabilities
11 Sep 202608:54
–cgr
cve
CVE
CVE-2026-84368
1 Sep 202620:36
–cve
cvelist
Cvelist
CVE-2026-84368 joi: Prototype pollution via a `__proto__` language key in custom messages
1 Sep 202620:36
–cvelist
euvd
EUVD
EUVD-2026-69649
8 Sep 202620:55
–euvd
github
Github Security Blog
joi: Prototype pollution via a `__proto__` language key in custom messages
8 Sep 202620:55
–github
nvd
NVD
CVE-2026-84368
1 Sep 202621:18
–nvd
osv
OSV
CGA-2JXR-8QXW-43VV
9 Sep 202614:16
–osv
osv
OSV
CGA-2MMC-RFWX-8CVF
9 Sep 202614:40
–osv
osv
OSV
CGA-2QP7-9X8Q-34G2
9 Sep 202612:33
–osv
osv
OSV
CGA-2R59-8GMP-HV9P
9 Sep 202611:37
–osv
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09 Sep 2026 00:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.13.7
EPSS0.00389
SSVC
0