CVE-2026-105851 Payload - Access Control Bypass

Payload 3.0.0 to < 3.90.0 and canary < 4.0.0-canary.34 contains an access control bypass caused by duplicate operation copying values despite hidden fields or access rules, letting attackers bypass access restrictions, exploit requires crafted duplicate operation.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.31% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Access Control Bypass
Impact
Information Disclosure, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-284

Vendor fix

Update to versions 3.90.0 or 4.0.0-canary.34 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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