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CVE-2026-27491 Discourse has a bypass of official warnings messages by non-staff users

🗓️ 19 Mar 2026 20:47:54Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

Discourse allowed non-staff users to issue warnings via a post actions API due to type coercion; patched.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cnnvd
CNNVD
Discourse 安全漏洞
19 Mar 202600:00
cnnvd
cve
CVE
CVE-2026-27491
19 Mar 202620:47
cve
euvd
EUVD
EUVD-2026-13190
19 Mar 202620:47
euvd
nvd
NVD
CVE-2026-27491
19 Mar 202621:17
nvd
osv
OSV
BIT-DISCOURSE-2026-27491 Discourse has a bypass of official warnings messages by non-staff users
27 Mar 202607:09
osv
ptsecurity
Positive Technologies
PT-2026-26359
19 Mar 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-27491
26 Mar 202615:09
redhatcve
vulnrichment
Vulnrichment
CVE-2026-27491 Discourse has a bypass of official warnings messages by non-staff users
19 Mar 202620:47
vulnrichment
[
  {
    "vendor": "discourse",
    "product": "discourse",
    "versions": [
      {
        "version": ">= 2026.1.0-latest, < 2026.1.2",
        "status": "affected"
      },
      {
        "version": ">= 2026.2.0-latest, < 2026.2.1",
        "status": "affected"
      },
      {
        "version": "= 2026.3.0-latest",
        "status": "affected"
      }
    ]
  }
]

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19 Mar 2026 20:47Current
CVSS 46.9
EPSS0.00326
29