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CVE-2026-55420

🗓️ 09 Jul 2026 17:54:07Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 8 Views

CVE-2026-55420: Discourse PDF uploads under non-default configs may cause RCE; fixed in 2026.6.0, 2026.5.1, 2026.4.2, 2026.1.5.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-55420
9 Jul 202617:54
attackerkb
Cvelist
CVE-2026-55420 Discourse: Remote code execution via pdf uploads
9 Jul 202617:54
cvelist
EUVD
EUVD-2026-42665
9 Jul 202617:54
euvd
NVD
CVE-2026-55420
9 Jul 202618:16
nvd
Positive Technologies
PT-2026-56893
9 Jul 202600:00
ptsecurity
Vulners
Node
discoursediscourseRange2026.5.0-latest2026.5.1
OR
discoursediscourseRange2026.4.0-latest2026.4.2
OR
discoursediscourseRange2026.1.0-latest2026.1.5
[
  {
    "vendor": "discourse",
    "product": "discourse",
    "versions": [
      {
        "version": ">= 2026.5.0-latest, < 2026.5.1",
        "status": "affected"
      },
      {
        "version": ">= 2026.4.0-latest, < 2026.4.2",
        "status": "affected"
      },
      {
        "version": ">= 2026.1.0-latest, < 2026.1.5",
        "status": "affected"
      }
    ]
  }
]

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09 Jul 2026 19:33Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
8