How severe is CVE-2025-63681?

CVE-2025-63681 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-63681 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63681?

CVE-2025-63681 affects Openwebui Open Webui. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-63681?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-63681 have an EU (EUVD) identifier?

Yes. CVE-2025-63681 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201164.

When was CVE-2025-63681 published?

CVE-2025-63681 was published on 2025-12-04 and last updated on 2026-06-17.

CVE-2025-63681

CVE-2025-63681 is a medium-severity vulnerability in Openwebui Open Webui with a CVSS 3.x base score of 4.3. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201164
Weakness: CWE-284
Affected product: Openwebui Open Webui
Published: 2025-12-04
Last modified: 2026-06-17

Description

open-webui v0.6.33 is vulnerable to Incorrect Access Control. The API /api/tasks/stop/ directly accesses and cancels tasks without verifying user ownership, enabling attackers (a normal user) to stop arbitrary LLM response tasks.

Frequently asked questions

What is CVE-2025-63681?: open-webui v0.6.33 is vulnerable to Incorrect Access Control. The API /api/tasks/stop/ directly accesses and cancels tasks without verifying user ownership, enabling attackers (a normal user) to stop arbitrary LLM response tasks.
How severe is CVE-2025-63681?: CVE-2025-63681 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-63681 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63681?: CVE-2025-63681 affects Openwebui Open Webui. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-63681?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-63681 have an EU (EUVD) identifier?: Yes. CVE-2025-63681 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201164.
When was CVE-2025-63681 published?: CVE-2025-63681 was published on 2025-12-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openwebui:open_webui:0.6.41:*:*:*:*:*:*:*

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