How severe is CVE-2024-12534?

CVE-2024-12534 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-12534 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-2024-12534?

CVE-2024-12534 affects Openwebui Open Webui. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-12534?

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-2024-12534 have an EU (EUVD) identifier?

Yes. CVE-2024-12534 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7009.

When was CVE-2024-12534 published?

CVE-2024-12534 was published on 2025-03-20 and last updated on 2026-06-17.

CVE-2024-12534

CVE-2024-12534 is a high-severity vulnerability in Openwebui Open Webui with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-7009
Weakness: CWE-400
Affected product: Openwebui Open Webui
Published: 2025-03-20
Last modified: 2026-06-17

Description

In version v0.3.32 of open-webui/open-webui, the application allows users to submit large payloads in the email and password fields during the sign-in process due to the lack of character length validation on these inputs. This vulnerability can lead to a Denial of Service (DoS) condition when a user submits excessively large strings, exhausting server resources such as CPU, memory, and disk space, and rendering the service unavailable for legitimate users. This makes the server susceptible to resource exhaustion attacks without requiring authentication.

Frequently asked questions

What is CVE-2024-12534?: In version v0.3.32 of open-webui/open-webui, the application allows users to submit large payloads in the email and password fields during the sign-in process due to the lack of character length validation on these inputs. This vulnerability can lead to a Denial of Service (DoS) condition when a user submits excessively large strings, exhausting server resources such as CPU, memory, and disk space, and rendering the service unavailable for legitimate users. This makes the server susceptible to resource exhaustion attacks without requiring authentication.
How severe is CVE-2024-12534?: CVE-2024-12534 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-12534 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-2024-12534?: CVE-2024-12534 affects Openwebui Open Webui. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-12534?: 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-2024-12534 have an EU (EUVD) identifier?: Yes. CVE-2024-12534 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7009.
When was CVE-2024-12534 published?: CVE-2024-12534 was published on 2025-03-20 and last updated on 2026-06-17.

References

https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76

Affected products (1)

cpe:2.3:a:openwebui:open_webui:0.3.32:*:*:*:*:*:*:*

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