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CVE-2026-32727

Scitokens Library path traversal

8.1 HIGHPublic exploitEPSS 0.53%
  1. Published31 Mar 2026

Description

SciTokens is a reference library for generating and using SciTokens. Prior to version 1.9.7, the Enforcer is vulnerable to a path traversal attack where an attacker can use dot-dot (..) in the scope claim of a token to escape the intended directory restriction. This occurs because the library normalizes both the authorized path (from the token) and the requested path (from the application) before comparing them using startswith. This issue has been patched in version 1.9.7.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

Scitokens Library< 1.9.7

Frequently asked

Is CVE-2026-32727 being actively exploited?

CVE-2026-32727 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.53%.

How severe is CVE-2026-32727?

CVE-2026-32727 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.53% probability of exploitation.

Which products are affected by CVE-2026-32727?

Affected products include Scitokens Library.

How do I fix CVE-2026-32727?

Upgrade affected software to a fixed version, for example Scitokens Library 1.9.7 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-32727 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.