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CVE-2026-40036

🗓️ 08 Apr 2026 21:35:28Reported by VulnCheckType 
cve
 cve
🔗 web.nvd.nist.gov👁 120 Views🌐 WEB

Unbounded zlib decompression in dfir-unfurl enables DoS from oversized payloads at /json/visjs.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40036
8 Apr 202621:35
–attackerkb
alpinelinux
AlpineLinux
CVE-2026-40036
8 Apr 202621:35
–alpinelinux
circl
Circl
CVE-2026-40036
29 Jan 202615:31
–circl
cnnvd
CNNVD
Unfurl security vulnerabilities
8 Apr 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-40036 Unfurl < 2026.04 - Denial of Service via Unbounded zlib Decompression
8 Apr 202621:35
–cvelist
euvd
EUVD
EUVD-2026-20779
9 Apr 202600:31
–euvd
github
Github Security Blog
Duplicate Advisory: Unfurl's unbounded zlib decompression allows decompression bomb DoS
9 Apr 202600:31
–github
github
Github Security Blog
Unfurl's unbounded zlib decompression allows decompression bomb DoS
29 Jan 202615:31
–github
mend
Mend
CVE-2026-40036
8 Apr 202621:35
–mend
nvd
NVD
CVE-2026-40036
8 Apr 202622:16
–nvd
Rows per page
NVD
Vulners
Node
ryandfirunfurlRange<2026.04
[
  {
    "vendor": "obsidianforensics",
    "product": "unfurl",
    "packageName": "dfir-unfurl",
    "repo": "https://github.com/obsidianforensics/unfurl",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "2026.04",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected",
    "packageURL": "pkg:pypi/dfir-unfurl"
  }
]
ParameterPositionPathDescriptionCWE
unspecifiedquery param/json/visjsUnbounded zlib decompression vulnerability in parse_compressed.py allows remote attackers to cause a denial of service by submitting highly compressed payloads via URL parameters.CWE-409, CWE-770

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08 Oct 2026 16:17Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
CVSS 48.7
EPSS0.00508
SSVC
120