CVE-2024-8053Public exploitNetwork attack vector

Unauthenticated service interruption via PDF generation

Published Mar 20, 2025 · Updated Mar 27, 2025

Missing authentication in Open WebUI 0.3.10 allows remote attackers to interrupt service through unauthenticated PDF generation. The api/v1/utils/pdf route invokes the PDF renderer without an authentication dependency and accepts attacker-controlled POST content. Any network client that can reach the route can consume server CPU and memory with oversized requests, causing resource exhaustion and service interruption.

CVSS severity7.5
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Open WebUI 0.3.10 allows remote attackers to interrupt service through unauthenticated PDF generation. The api/v1/utils/pdf route invokes the PDF renderer without an authentication dependency and accepts attacker-controlled POST content. Any network client that can reach the route can consume server CPU and memory with oversized requests, causing resource exhaustion and service interruption.

The record

CVE
CVE-2024-8053
Published
Mar 20, 2025
Updated
Mar 27, 2025
Vendor
Open WebUI
Product
Open WebUI
Classifications
CWE-306, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=latest

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open WebUI · Open WebUIversion=unspecified <=latest

Published CVSS scores

7.5@huntr_aiCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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