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CVE-2026-45349

🗓️ 19 May 2026 13:56:47Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 21 Views

CVE-2026-45349: Open WebUI allowed chat takeover via /api/chat/completions with another user's Chat ID before 0.9.0; fixed in 0.9.0.

Related
Refs
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attackerkb
attackerkb
CVE-2026-45349
15 May 202619:20
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bdu_fstec
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Open WebUI Authentication Bypass
22 May 202600:00
–bdu_fstec
circl
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CVE-2026-45349
14 May 202620:24
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cnnvd
CNNVD
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15 May 202600:00
–cnnvd
cve
CVE
CVE-2026-45349
15 May 202619:20
–cve
cvelist
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CVE-2026-45349 Open WebUI: Broken Access Control for Completions API
15 May 202619:20
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euvd
EUVD
EUVD-2026-30605
15 May 202619:20
–euvd
github
Github Security Blog
Open WebUI has Broken Access Control for Completions API
14 May 202620:24
–github
mend
Mend
CVE-2026-45349
15 May 202619:20
–mend
nvd
NVD
CVE-2026-45349
15 May 202620:16
–nvd
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19 May 2026 13:56Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.17.1
EPSS0.00231
SSVC
21