CVE-2026-44372 PUBLISHED

Nitro: Open Redirect via Protocol-Relative URL Bypass in Wildcard Route Rules

Assigner: GitHub_M
Reserved: 05.05.2026 Published: 13.05.2026 Updated: 13.05.2026

Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could turn a redirect route rule using wildcards rewrite into a cross-host redirect by sliding an extra slash in after the rule prefix. This vulnerability is fixed in 3.0.260429-beta.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	Low
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	nitrojs
Product	nitro
Versions	Version < 3.0.260429-beta is affected

Vendor	nitrojs
Product	nitropack
Versions	Version < 2.13.4 is affected

References

Problem Types

CWE-601: URL Redirection to Untrusted Site ('Open Redirect') CWE