High severity · published Oct 6, 2026
CVE-2026-105850
Payload: Order confirmation validation issue in Payload Ecommerce
8.2
CVSS
0.3%
EPSS
No
On KEV
Description
Payload is a free and open source headless content management system. In @payloadcms/plugin-ecommerce versions before 3.90.0 and canary versions before 4.0.0-canary.34, use of the Stripe payment adapter can allow a Stripe order confirmation to be processed more than once under certain conditions. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
payload · payloadcms
< 3.90.0; >= 4.0.0-canary.0, < 4.0.0-canary.34 · source: vendor, NVD
PL
plugin-ecommerce · @payloadcms
< 3.90.0; >= 4.0.0-canary.0, < 4.0.0-canary.34 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105850
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105850
x_refsource_CONFIRM
https://github.com/payloadcms/payload/security/advisories/GHSA-8r29-2mp2-pmrw
x_refsource_MISC
https://github.com/payloadcms/payload/commit/6c0c4dc9b4ce1ac87b03fbb5dd7356b8559cbc4e
x_refsource_MISC
https://github.com/payloadcms/payload/releases/tag/v3.90.0