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CVE-2026-48028

🗓️ 24 Jun 2026 19:43:01Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

Mastodon (open-source social network server) versions prior to 4.5.10, 4.4.17, and 4.3.23 are affected. The vulnerability arises from how incoming activities signed with Linked-Data Signatures are normalized, failing to adequately protect against ...

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-48028
24 Jun 202619:43
attackerkb
Cvelist
CVE-2026-48028 Mastodon: Removal of integrity-protected JSON entries from signed activities
24 Jun 202619:43
cvelist
EUVD
EUVD-2026-39056
24 Jun 202619:43
euvd
NVD
CVE-2026-48028
24 Jun 202620:16
nvd
Positive Technologies
PT-2026-52080
24 Jun 202600:00
ptsecurity
Vulners
Node
mastodonmastodonRange4.5.0-beta.14.5.10
OR
mastodonmastodonRange4.4.0-beta.14.4.17
OR
mastodonmastodonRange<4.3.23
[
  {
    "vendor": "mastodon",
    "product": "mastodon",
    "versions": [
      {
        "version": ">= 4.5.0-beta.1, < 4.5.10",
        "status": "affected"
      },
      {
        "version": ">= 4.4.0-beta.1, < 4.4.17",
        "status": "affected"
      },
      {
        "version": "< 4.3.23",
        "status": "affected"
      }
    ]
  }
]

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24 Jun 2026 20:16Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.5
EPSS0.00051
5