What is CVE-2026-18446?

CVE-2026-18446 is a high-severity vulnerability in Fast-uri, classified under CWE-436. CVSS score: 7.5/10. Published 2026-07-31.

How severe is CVE-2026-18446?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Fast-uri

CVE-2026-18446

fast-uri before 4.1.2, 3.1.5, and 2.4.4 requires a literal double forward slash to recognize a URI authority, so a reference that uses a backslash based introducer in place of it (backslash backslash, forward slash backslash, or backslash…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Fast-uri — versions 4.0.0, 4.1.2, 3.0.0

Weakness classification (CWE)

CWE-436

References

ce714d77-add3-4f53-aff5-83d477b104bb
ce714d77-add3-4f53-aff5-83d477b104bb

Frequently asked questions

What is CVE-2026-18446?: CVE-2026-18446 is a high-severity vulnerability in Fast-uri, classified under CWE-436. CVSS score: 7.5/10. Published 2026-07-31.
How severe is CVE-2026-18446?: High severity. CVSS v3 base score is 7.5 out of 10.