How severe is CVE-2026-32725?

CVE-2026-32725 has a CVSS 3.x base score of 8.3, 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 low.

Is CVE-2026-32725 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-32725?

CVE-2026-32725 affects Scitokens Scitokens Cpp Library. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-32725?

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-2026-32725 have an EU (EUVD) identifier?

Yes. CVE-2026-32725 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17561.

When was CVE-2026-32725 published?

CVE-2026-32725 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-32725

CVE-2026-32725 is a high-severity vulnerability in Scitokens Scitokens Cpp Library with a CVSS 3.x base score of 8.3. 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-23.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17561
Weakness: CWE-23
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 when processing path-based scopes in tokens. The library normalizes the scope path from the token before authorization and collapses ".." path components instead of rejecting them. As a result, an attacker can use parent-directory traversal in the scope claim to broaden the effective authorization beyond the intended directory. This issue has been patched in version 1.4.1.

Frequently asked questions

What is CVE-2026-32725?: 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 when processing path-based scopes in tokens. The library normalizes the scope path from the token before authorization and collapses ".." path components instead of rejecting them. As a result, an attacker can use parent-directory traversal in the scope claim to broaden the effective authorization beyond the intended directory. This issue has been patched in version 1.4.1.
How severe is CVE-2026-32725?: CVE-2026-32725 has a CVSS 3.x base score of 8.3, 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 low.
Is CVE-2026-32725 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32725?: CVE-2026-32725 affects Scitokens Scitokens Cpp Library. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-32725?: 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-2026-32725 have an EU (EUVD) identifier?: Yes. CVE-2026-32725 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17561.
When was CVE-2026-32725 published?: CVE-2026-32725 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:*:*:*:*:*:*:*:*

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