What is CVE-2026-28807?

CVE-2026-28807 is a high-severity vulnerability in Gleam-wisp Wisp, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-03-10.

How severe is CVE-2026-28807?

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

Path Traversal in Gleam-wisp Wisp

CVE-2026-28807

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in gleam-wisp wisp allows arbitrary file read via percent-encoded path traversal. The wisp.serve_static function is vulnerable to path traversal…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (31.6th percentile) — read the EPSS interpretation.

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:H/I:N/A:N.

Affected products

Gleam-wisp Wisp — versions 2.1.1, 129dcb1fe10ab1e676145d91477535e1c90ab550

Weakness classification (CWE)

CWE-22 — Path Traversal

References

6b3ad84c-e1a6-4bf7-a703-f496b71e49db (related, Exploit, vendor-advisory, Patch, Vendor Advisory)
6b3ad84c-e1a6-4bf7-a703-f496b71e49db (related, Third Party Advisory)
6b3ad84c-e1a6-4bf7-a703-f496b71e49db (related, Third Party Advisory)
6b3ad84c-e1a6-4bf7-a703-f496b71e49db (Patch, patch)

Frequently asked questions

What is CVE-2026-28807?: CVE-2026-28807 is a high-severity vulnerability in Gleam-wisp Wisp, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-03-10.
How severe is CVE-2026-28807?: High severity. CVSS v3 base score is 7.5 out of 10.