VulnerabilityAnalyzed

CVE-2026-32716

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.

MEDIUM 6.5EPSS 0.39%

Does this matter?

Lower severity and a low EPSS score (0.39%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.39% probability · 32th percentile
CISA KEV: Not listed
Weakness: CWE-285
Affected: scitokens/scitokens library
Source: security-advisories@github.com

References

https://github.com/scitokens/scitokens/commit/7a237c0f642efb9e8c36ac564b745895cca83583Patch
https://github.com/scitokens/scitokens/releases/tag/v1.9.6Release Notes
https://github.com/scitokens/scitokens/security/advisories/GHSA-w8fp-g9rh-34jhExploit, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.