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HIGH

CVE-2021-23664

CVSS v3

7.5

HIGH

EPSS Score

1.4 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

The package @isomorphic-git/cors-proxy before 2.7.1 are vulnerable to Server-side Request Forgery (SSRF) due to missing sanitization and validation of the redirection action in middleware.js.

Technical details

Published
2022-01-21

Frequently asked questions

What is CVE-2021-23664?

The package @isomorphic-git/cors-proxy before 2.7.1 are vulnerable to Server-side Request Forgery (SSRF) due to missing sanitization and validation of the redirection action in middleware.js.

Is CVE-2021-23664 actively exploited?

Active exploitation of CVE-2021-23664 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-23664?

CVE-2021-23664 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2021-23664 affecting your environment?

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