CVE-2026-86735
snipe-it before 8.7.0 SSRF via IPv6 transition address bypass
CVSS Score
5.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-918 |
| Vendor | grokability |
| Product | snipe-it |
| Published | Sep 8, 2026 |
| Last Updated | Sep 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
grokability / snipe-it
0 < 8.7.0
References
Credits
🔍 tonghuaroot snipe