CVE-2024-8053 json
Improper Authentication in open-webui/open-webui
published 2025-03-20 19 mo ago modified 2026-07-23 3 mo ago also GHSA-9vf8-xgwm-97r8 , PYSEC-2026-1725 , EUVD-2025-6921
- cvss
- 7.5
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
In version v0.3.10 of open-webui/open-webui, the `api/v1/utils/pdf` endpoint lacks authentication mechanisms, allowing unauthenticated attackers to access the PDF generation service. This vulnerability can be exploited by sending a POST request with an excessively large payload, potentially leading to server resource exhaustion and denial of service (DoS). Additionally, unauthorized users can misuse the endpoint to generate PDFs without verification, resulting in service misuse and potential operational and financial impacts.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.com https://huntr.com/bounties/ebe8c1fa-113b-4df9-be03-a406b9adb9f4 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | open-webui | <=0.3.10 <0.5.13 |
0.5.13 |
Affected products
- open-webui open-webui/open-webui
Classification
References
-
github.com
/open-webui/open-webui/commit/2f75eef499cc5cb48deb639cebebf86c405640bd
patch
-
huntr.com
/bounties/ebe8c1fa-113b-4df9-be03-a406b9adb9f4
exploit, web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-8053
advisory
-
github.com
/open-webui/open-webui
package
-
pypi.org
/project/open-webui
package
-
github.com
/advisories/GHSA-9vf8-xgwm-97r8
advisory
Sources
- CVE List CVE-2024-8053
- GitHub Advisory GHSA-9vf8-xgwm-97r8
- NVD CVE-2024-8053
- OSV PYSEC-2026-1725
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