CVE-2026-32716CWE-285

SciTokens: Authorization Bypass via Incorrect Scope Path Prefix Checking

High · published March 31, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
36.1
In the wild
Unconfirmed
What it is

SciTokens is a reference library for generating and using SciTokens. Prior to version 1.9.6, the Enforcer incorrectly validates scope paths by using a simple prefix match (startswith). This allows a token with access to a specific path (e.g., /john) to also access sibling paths that start with the same prefix (e.g., /johnathan, /johnny), which is an Authorization Bypass. This issue has been patched in version 1.9.6.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00430 · 36.1th percentile
Weakness
CWE-285 · Improper Authorization
Published
2026-03-31T01:31Z
EPSS history
Timeline
  • 31 MAR 01:31Z
    SciTokens: Authorization Bypass via Incorrect Scope Path Prefix Checking
    cvelistv5