CVE-2026-6322
7.5 · HIGHOverview
CVE-2026-6322 is a high-severity vulnerability affecting openjsf fast-uri. It was published on May 5, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
fast-uri normalize() decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator, changing the URI's authority to the second domain. Applications that normalize untrusted URLs before host allowlist checks, redirect validation, or outbound request routing can be steered to a different authority than the input appeared to specify. Versions <= 3.1.1 are affected. Update to 3.1.2 or later.
Remediation
Check the references section for vendor advisories and patches from openjsf. Update fast-uri to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| openjsf | fast-uri | >= 0, < 3.1.2 | Affected |
References
Frequently Asked Questions
What is CVE-2026-6322?
CVE-2026-6322 is a high-severity vulnerability affecting openjsf fast-uri. It was published on May 5, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-6322?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-6322?
Check the references section for vendor advisories and patches from openjsf. Update fast-uri to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-6322?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-6322 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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