How severe is CVE-2026-32726?

CVE-2026-32726 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-32726 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-32726?

CVE-2026-32726 affects Scitokens Scitokens Cpp Library. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-32726?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-32726 have an EU (EUVD) identifier?

Yes. CVE-2026-32726 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17563.

When was CVE-2026-32726 published?

CVE-2026-32726 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-32726

CVE-2026-32726 is a high-severity vulnerability in Scitokens Scitokens Cpp Library with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17563
Weakness: CWE-863
Affected product: Scitokens Scitokens Cpp Library
Published: 2026-03-31
Last modified: 2026-06-17

Description

SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1, scitokens-cpp is vulnerable to an authorization bypass in path-based scope validation. The enforcer used a simple string-prefix comparison when checking whether a requested resource path was covered by a token's authorized scope path. Because the check did not require a path-segment boundary, a token scoped to one path could incorrectly authorize access to sibling paths that merely started with the same prefix. This issue has been patched in version 1.4.1.

Frequently asked questions

What is CVE-2026-32726?: SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1, scitokens-cpp is vulnerable to an authorization bypass in path-based scope validation. The enforcer used a simple string-prefix comparison when checking whether a requested resource path was covered by a token's authorized scope path. Because the check did not require a path-segment boundary, a token scoped to one path could incorrectly authorize access to sibling paths that merely started with the same prefix. This issue has been patched in version 1.4.1.
How severe is CVE-2026-32726?: CVE-2026-32726 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-32726 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32726?: CVE-2026-32726 affects Scitokens Scitokens Cpp Library. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-32726?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-32726 have an EU (EUVD) identifier?: Yes. CVE-2026-32726 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17563.
When was CVE-2026-32726 published?: CVE-2026-32726 was published on 2026-03-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:scitokens:scitokens_cpp_library:*:*:*:*:*:*:*:*

More vulnerabilities in Scitokens Scitokens Cpp Library

CVE-2026-32725 — High (CVSS 8.3): SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1,…

All CVEs affecting Scitokens Scitokens Cpp Library →

Other CWE-863 (Incorrect Authorization) vulnerabilities

CVE-2026-48286 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization…
CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…
CVE-2026-44330 — Critical (CVSS 10.0): free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the…
CVE-2026-46595 — Critical (CVSS 10.0): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of…
CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
CVE-2026-32213 — Critical (CVSS 10.0): Improper authorization in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →