CVE-2026-56332

Capgo before 12.128.2 contains an open redirect vulnerability in the confirm-signup endpoint that allows attackers to redirect users to arbitrary external websites. The confirmation_url parameter is not validated, enabling attackers to craft malicious links for phishing and credential harvesting attacks.

CVSS 4.0

5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N

CVSS 3.1

4.7CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)

CWE

CWE-601

Published

2026-06-20

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-24q8-ghqq-m8cj
• https://www.vulncheck.com/advisories/capgo-open-redirect-via-confirmation-url-parameter
• https://github.com/Cap-go/capgo/security/advisories/GHSA-24q8-ghqq-m8cj

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