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CVE-2026-33868

🗓️ 27 Mar 2026 19:50:07Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 34 Views🌐 WEB

Mastodon versions before 4.5.8, 4.4.15, and 4.3.21 have an unauthenticated open redirect via /web/%2F<domain> enabling phishing.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-33868
27 Mar 202619:50
attackerkb
circl
Circl
CVE-2026-33868
25 Mar 202611:02
circl
cnnvd
CNNVD
Mastodon 输入验证错误漏洞
27 Mar 202600:00
cnnvd
cvelist
Cvelist
CVE-2026-33868 Mastodon has a GET-Based Open Redirect via '/web/%2F<domain>'
27 Mar 202619:50
cvelist
euvd
EUVD
EUVD-2026-16783
27 Mar 202619:50
euvd
nuclei
Nuclei
Mastodon - Open Redirect
5 Aug 202602:59
nuclei
nvd
NVD
CVE-2026-33868
27 Mar 202620:16
nvd
osv
OSV
BIT-MASTODON-2026-33868 Mastodon has a GET-Based Open Redirect via '/web/%2F<domain>'
31 Mar 202608:45
osv
ptsecurity
Positive Technologies
PT-2026-28106
25 Mar 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-33868
28 Mar 202623:09
redhatcve
Rows per page
NVD
Vulners
Node
OR
joinmastodonmastodonRange4.4.04.4.15
joinmastodonmastodonRange4.5.04.5.8
[
  {
    "vendor": "mastodon",
    "product": "mastodon",
    "versions": [
      {
        "version": ">= 4.5.0, < 4.5.8",
        "status": "affected"
      },
      {
        "version": ">= 4.4.0, < 4.4.15",
        "status": "affected"
      },
      {
        "version": "< 4.3.21",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
pathpath/web/*Unauthenticated open redirect via URL-encoded path segments in the /web/* route (CWE-601).CWE-601

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