VULNERABILITY INTELLIGENCE
CVE-2026-56331
CVSS score6.9 MEDIUM
EPSS probability0.34%
CISA KEVNot currently listed
Published2026-06-30
Last modified2026-07-01
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Description
Capgo before 12.128.2 contains improper error handling in the /private/accept_invitation endpoint that returns HTTP 500 instead of safe 4xx errors when magic_invite_string is invalid. Attackers can trigger this vulnerability using only the public key by submitting malformed magic_invite_string values to cause server errors and leak internal processing details.
Weakness classification
- CWE-209: Generation of Error Message Containing Sensitive Information