The vulnerability in the Open WebUI web interface, related to the mechanism for restricting access to API keys, allows attackers to bypass existing security measures and gain unauthorized access to protected information.
🗓️ 25 May 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 9 Views
| Reporter | Title | Published | Views | Family All 15 |
|---|---|---|---|---|
 | CVE-2026-45339 | 15 May 202619:21 | – | attackerkb |
 | CVE-2026-45339 | 9 May 202619:38 | – | circl |
 | Open WebUI 安全漏洞 | 15 May 202600:00 | – | cnnvd |
 | CVE-2026-45339 | 15 May 202619:21 | – | cve |
 | CVE-2026-45339 Open WebUI: API key endpoint restrictions bypassed via `x-api-key` header — full message processing on restricted endpoints | 15 May 202619:21 | – | cvelist |
 | EUVD-2026-30612 | 15 May 202619:21 | – | euvd |
 | Open WebUI's API key endpoint restrictions bypassed via `x-api-key` header — full message processing on restricted endpoints | 14 May 202620:21 | – | github |
 | CVE-2026-45339 | 15 May 202620:16 | – | nvd |
 | GHSA-57Q6-FVP4-PQMM Open WebUI's API key endpoint restrictions bypassed via `x-api-key` header — full message processing on restricted endpoints | 14 May 202620:21 | – | osv |
| PYSEC-2026-3543 Open WebUI's API key endpoint restrictions bypassed via `x-api-key` header — full message processing on restricted endpoints | 23 Jul 202616:28 | – | osv |
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25 May 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 36.5
CVSS 28.5
EPSS0.00309