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CVE-2026-34719 Zammad has a Server-side request forgery (SSRF) via webhooks

🗓️ 08 Apr 2026 18:02:16Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 16 Views

Zammad webhooks lacked loopback and link-local checks, risking cloud metadata access; fixed.

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8 Apr 202623:33
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8 Apr 202618:02
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8 Apr 202619:25
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CVE-2026-34719
11 Apr 202601:21
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Vulnrichment
CVE-2026-34719 Zammad has a Server-side request forgery (SSRF) via webhooks
8 Apr 202618:02
vulnrichment
[
  {
    "vendor": "zammad",
    "product": "zammad",
    "versions": [
      {
        "version": "< 6.5.4",
        "status": "affected"
      },
      {
        "version": ">= 7.0.0-alpha, < 7.0.1",
        "status": "affected"
      }
    ]
  }
]

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