How severe is CVE-2025-27501?

CVE-2025-27501 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-27501 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-27501?

CVE-2025-27501 affects Openziti. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-27501?

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-2025-27501 have an EU (EUVD) identifier?

Yes. CVE-2025-27501 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6004.

When was CVE-2025-27501 published?

CVE-2025-27501 was published on 2025-03-03 and last updated on 2026-06-17.

CVE-2025-27501

CVE-2025-27501 is a high-severity vulnerability in Openziti with a CVSS 3.x base score of 8.6. 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-918.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-6004
Weakness: CWE-918
Affected product: Openziti
Published: 2025-03-03
Last modified: 2026-06-17

Description

OpenZiti is a free and open source project focused on bringing zero trust to any application. An endpoint on the admin panel can be accessed without any form of authentication. This endpoint accepts a user-supplied URL parameter to connect to an OpenZiti Controller and performs a server-side request, resulting in a potential Server-Side Request Forgery (SSRF) vulnerability. The fixed version has moved the request to the external controller from the server side to the client side, thereby eliminating the identity of the node from being used to gain any additional permissions. This vulnerability is fixed in 3.7.1.

Frequently asked questions

What is CVE-2025-27501?: OpenZiti is a free and open source project focused on bringing zero trust to any application. An endpoint on the admin panel can be accessed without any form of authentication. This endpoint accepts a user-supplied URL parameter to connect to an OpenZiti Controller and performs a server-side request, resulting in a potential Server-Side Request Forgery (SSRF) vulnerability. The fixed version has moved the request to the external controller from the server side to the client side, thereby eliminating the identity of the node from being used to gain any additional permissions. This vulnerability is fixed in 3.7.1.
How severe is CVE-2025-27501?: CVE-2025-27501 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-27501 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-27501?: CVE-2025-27501 affects Openziti. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-27501?: 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-2025-27501 have an EU (EUVD) identifier?: Yes. CVE-2025-27501 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6004.
When was CVE-2025-27501 published?: CVE-2025-27501 was published on 2025-03-03 and last updated on 2026-06-17.

References

https://github.com/openziti/ziti-console/security/advisories/GHSA-fqxh-vfv5-8qjp

Affected products (1)

cpe:2.3:a:openziti:openziti:*:*:*:*:*:*:*:*

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