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Vulnerability details: VCID-3hv8-ys1d-63a6
Vulnerability ID VCID-3hv8-ys1d-63a6
Aliases CVE-2024-12534
GHSA-g3mx-83mp-3rwc
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-400 Uncontrolled Resource Consumption
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2024-12534
epss 0.00618 https://api.first.org/data/v1/epss?cve=CVE-2024-12534
cvssv3.1 7.5 https://github.com/open-webui/open-webui
generic_textual HIGH https://github.com/open-webui/open-webui
cvssv3.1 7.5 https://github.com/open-webui/open-webui/blob/e8babe62bc8e466be0367703fd062a981f5c2394/src/lib/apis/auths/index.ts#L113-L142
generic_textual HIGH https://github.com/open-webui/open-webui/blob/e8babe62bc8e466be0367703fd062a981f5c2394/src/lib/apis/auths/index.ts#L113-L142
cvssv3 7.5 https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76
cvssv3.1 7.5 https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76
generic_textual HIGH https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76
ssvc Track https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2024-12534
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2024-12534
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2024-12534
https://github.com/open-webui/open-webui
https://github.com/open-webui/open-webui/blob/e8babe62bc8e466be0367703fd062a981f5c2394/src/lib/apis/auths/index.ts#L113-L142
https://nvd.nist.gov/vuln/detail/CVE-2024-12534
c7c0a4e6-acd3-49b4-8684-2c2c27014b76 https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76
GHSA-g3mx-83mp-3rwc https://github.com/advisories/GHSA-g3mx-83mp-3rwc
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/open-webui/open-webui
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

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none

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/open-webui/open-webui/blob/e8babe62bc8e466be0367703fd062a981f5c2394/src/lib/apis/auths/index.ts#L113-L142
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

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high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

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low

none
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-03-20T17:50:33Z/ Found at https://huntr.com/bounties/c7c0a4e6-acd3-49b4-8684-2c2c27014b76
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2024-12534
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.70443
EPSS Score 0.00618
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-10T18:29:37.060394+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2024/12xxx/CVE-2024-12534.json 38.6.0