CVE-2026-56224

5.1 mediumEPSS 0.3%

Medium (5.1). EPSS 0.3% chance of exploitation in the next 30 days.

Capgo console.capgo.app/login before 12.128.2 accepts access_token and refresh_token in URL query parameters, automatically authenticating users without confirmation. Attackers can craft malicious links to force victims into attacker-controlled sessions, exposing tokens in browser history and logs.

Severity

CVSS 4.0

5.1 medium

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

CVSS 3.1

5.4 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-31)
CWE: CWE-384
Published: 2026-06-30
Modified: 2026-07-01
Record from: the NVD, synced 2026-10-19

References

https://github.com/Cap-go/capgo/security/advisories/GHSA-83f5-439g-pwmj
https://www.vulncheck.com/advisories/capgo-login-csrf-and-session-fixation-via-url-query-parameters
https://github.com/Cap-go/capgo/security/advisories/GHSA-83f5-439g-pwmj

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