CVE-2026-56227
Last modified
CVE-2026-56227 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Capgo before 12.128.2 contains a server-side request forgery vulnerability in webhook URL validation that allows loopback and internal addresses. Organization admins can configure webhooks pointing to localhost or 127.0.0.1, and when triggered, the backend performs outbound requests to these addresses with error responses disclosed to users.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
Capgo before 12.128.2 contains a server-side request forgery vulnerability in webhook URL validation that allows loopback and internal addresses. Organization admins can configure webhooks pointing to localhost or 127.0.0.1, and when triggered, the backend performs outbound requests to these addresses with error responses disclosed to users.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-56227?
How severe is CVE-2026-56227?
How do I fix CVE-2026-56227?
How Strix Helps
- One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-56221Cap-go before 12.128.2 contains multiple SQL injection vulne…7.1
- CVE-2026-56222Capgo before 12.128.2 contains an authorization bypass vulne…8.6
- CVE-2026-56223Capgo before 12.128.2 contains a cross-domain SSO account ta…9.3
- CVE-2026-56224Capgo console.capgo.app/login before 12.128.2 accepts access…5.4
- CVE-2026-56225Capgo before 12.128.2 contains an authorization bypass vulne…8.7
- CVE-2026-56226Capgo (Cap-go/capgo) before 12.128.2 exposes the Supabase Po…8.7
- CVE-2026-56228Capgo before 12.128.2 fails to enforce a maximum value on th…6.9
- CVE-2026-56229Capgo before 12.128.2 contains an authorization bypass vulne…7.1
- CVE-2026-5623A vulnerability was identified in hcengineering Huly Platfor…6.3
- CVE-2026-56230Capgo before 12.128.2 contains a broken object level authori…8.8
- CVE-2026-56231Capgo before 12.128.2 contains a broken object level authori…7.6
- CVE-2026-56232Capgo before 12.128.2 fails to enforce limited_to_orgs and l…8.8
Are you affected by CVE-2026-56227?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST