Vulnerability DatabaseCVE-2026-56312
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CVE-2026-56312
Published:July 10, 2026
Updated:August 04, 2026
Capgo before 12.128.2 contains an improper validation vulnerability in the accept_invitation endpoint that creates user accounts before captcha validation is enforced. Attackers can bypass captcha protection by sending POST requests with invalid captcha tokens to create unwanted accounts and burn invite links.
Affected Packages
https://github.com/Cap-go/capgo.git (GITHUB):
Affected version(s) >=v12.10.0 <v12.108.2
Fix Suggestion:
Update to version v12.108.2
Related Resources (4)
https://nvd.nist.gov/vuln/detail/CVE-2026-56312
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56312.json
https://github.com/Cap-go/capgo/security/advisories/GHSA-whc5-fvr7-g5v3
https://www.vulncheck.com/advisories/capgo-account-creation-before-captcha-validation-in-accept-invitation-endpoint
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Authentication
CWE-287
EPSS
Base Score:
0.27