CVE-2026-56331

mediumCVSS 5.3covered by 1 sourcefirst seen 2026-06-30

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.

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Exploitation outlook

Low exploitation risk0.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-56331: Capgo before 12.128.2 contains improper error handling in the /private/accept_invitation endpo…nvd · 2026-06-30

External references

NVD record for CVE-2026-56331

CVE.org record

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