CVE-2026-86735
snipe-it versions before 8.7.0 contain a server-side request forgery vulnerability in the ExternalUrl validation rule that fails to detect IPv6 transition addresses encoding private IPv4 targets. Attackers with super-admin privileges can configure webhook URLs using NAT64, 6to4, or Teredo transition addresses to bypass SSRF guards and access internal services or cloud metadata endpoints.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.9
- CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.25%
- CWE
- CWE-918
- Published
- 2026-09-08
- Last modified
- 2026-09-08
Affected products
- grokability snipe-it
- grokability snipe-it
Weakness type
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