URIjs Hostname spoofing via backslashes in URL

Description

If using affected versions to determine a URL’s hostname, the hostname can be spoofed by using a backslash (\) character as part of the scheme delimiter, e.g. scheme:/\hostname. If the hostname is used in security decisions, the decision may be incorrect.

Recommendation

Update the urijs package to the latest compatible version. Followings are version details:

• Affected version(s): < 1.19.6
• Patched version(s): 1.19.6

References

• GHSA-p6j9-7xhc-rhwp
• advisory.checkmarx.net
• CVE-2021-27516
• CWE-20
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• URIjs Vulnerable to Hostname spoofing via backslashes in URL - CVE-2021-3647
• Hostname spoofing via backslashes in URL - CVE-2020-26291
• Vite XSS vulnerability in `server.transformIndexHtml` via URL payload - CVE-2023-49293
• i18next-http-backend has Path Traversal & URL Injection via Unsanitised lng/ns - CVE-2026-41691

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Tags:

npm

urijs