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CVE-2026-45349

🗓️ 15 May 2026 19:20:37Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 66 Views🌐 WEB

CVE-2026-45349: Broken access control allowed a user to continue another's chat before 0.9.0.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-45349
15 May 202619:20
–attackerkb
bdu_fstec
BDU FSTEC
Open WebUI Authentication Bypass
22 May 202600:00
–bdu_fstec
circl
Circl
CVE-2026-45349
14 May 202620:24
–circl
cnnvd
CNNVD
Open WebUI security vulnerabilities
15 May 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-45349 Open WebUI: Broken Access Control for Completions API
15 May 202619:20
–cvelist
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
osv_ghsa
osv_ghsa
GHSA-GFM2-XM6C-37QC Open WebUI has Broken Access Control for Completions API
14 May 202620:24
–osv_ghsa
Rows per page
NVD
Vulners
Node
[
  {
    "vendor": "open-webui",
    "product": "open-webui",
    "versions": [
      {
        "version": "< 0.9.0",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
chat_idnested/api/chat/completionsAn attacker can use their own API key to access and continue another user's conversation by providing the target user's Chat ID in the request body.CWE-639

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17 Jun 2026 10:51Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.17.1
EPSS0.00231
SSVC
66