Server-side request forgery (SSRF) in @isomorphic-git/cors-proxy
Priority MEDIUM 40CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-918 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.01389 72nd percentileScored 2026-11-07
Fix Fixed @isomorphic-git/cors-proxy: 2.7.1@isomorphic-git/cors-proxy (npm): 2.7.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | @isomorphic-git/cors-proxy | before 2.7.1 | 2.7.1 | Patch available | CNA |
| — | @isomorphic-git/cors-proxy (npm) | before 2.7.1 | 2.7.1 | Patch available | GHSA-v82v-rq72-phq9 |
- @isomorphic-git/cors-proxy Vendor— Affected before 2.7.1 Fixed in 2.7.1 Patch available CNA
- @isomorphic-git/cors-proxy (npm) Vendor— Affected before 2.7.1 Fixed in 2.7.1 Patch available GHSA-v82v-rq72-phq9
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:isomorphic-git:cors-proxy:*:*:*:*:*:*:*:* | before 2.7.1 | Vulnerable | isomorphic-git |
- cpe:2.3:a:isomorphic-git:cors-proxy:*:*:*:*:*:*:*:* Versions before 2.7.1 Vulnerable ·isomorphic-git
Remediation
- Fix · CNA @isomorphic-git/cors-proxy Fixed in 2.7.1
- Fix · GHSA-v82v-rq72-phq9 @isomorphic-git/cors-proxy (npm) Fixed in 2.7.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23664
- 2026-10-03 Alias added: GHSA-v82v-rq72-phq9
References
Sources
- CVE-2021-23664 · CVE Program
- CVE-2021-23664 · NVD
- FIRST EPSS
- GHSA-v82v-rq72-phq9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences