# CVE-2026-86735

## Summary

- **CVE ID:** CVE-2026-86735
- **Severity:** MEDIUM
- **CVSS Score:** 5.9 (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)
- **CWE:** CWE-918
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 8, 2026

## Description

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.

## Affected Products

- grokability — snipe-it (0)
- grokability — snipe-it (8.7.0)

## References

- [CNA](https://github.com/grokability/snipe-it/security/advisories/GHSA-5j6m-rr83-rpj7)
- [CNA](https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-ssrf-via-ipv6-transition-address-bypass)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.25%
- **EPSS Percentile:** 16.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._