What’s Vulnerable › Vulnerabilities

CVE-2026-86735: snipe-it before 8.7.0 SSRF via IPv6 transition address bypass

• Severity: medium (CVSS 5.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-08 · updated 2026-09-09
• Weakness: CWE-918

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: before 8.7.0 — fixed in 8.7.0

How to fix

Upgrade to a fixed version: grokability snipe-it 8.7.0. Check the vendor advisory for mitigations.

References

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

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