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CVE-2026-43899

🗓️ 11 May 2026 21:42:54Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 44 Views

Incomplete fix enables remote code execution from Markdown links bypassing isValidExternalUrl.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-43899
11 May 202621:42
–attackerkb
circl
Circl
CVE-2026-43899
12 Sep 202610:00
–circl
cnnvd
CNNVD
DeepChat input validation vulnerability
11 May 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-43899 DeepChat: Incomplete Fix for CVE-2025-55733 leads to Remote Code Execution via Markdown Links bypassing `isValidExternalUrl`
11 May 202621:42
–cvelist
euvd
EUVD
EUVD-2026-29336
11 May 202621:42
–euvd
mend
Mend
CVE-2026-43899
11 May 202621:42
–mend
nvd
NVD
CVE-2026-43899
11 May 202623:20
–nvd
ptsecurity
Positive Technologies
PT-2026-39859
11 May 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-43899: Improper Input Validation
11 May 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-43899
5 Jun 202619:23
–redhatcve
Rows per page
Vulners
Node
thinkinaideepchatRange<1.0.4-beta.1
[
  {
    "vendor": "ThinkInAIXYZ",
    "product": "deepchat",
    "versions": [
      {
        "version": "< 1.0.4-beta.1",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 10:50Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.19.6
EPSS0.0033
SSVC
44