Medium severity5.0NVD Advisory· Published Sep 8, 2026· Updated Sep 9, 2026
CVE-2026-86735
CVE-2026-86735
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.
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Affected products
1- Range: <8.7.0
Patches
Vulnerability mechanics
References
2- github.com/grokability/snipe-it/security/advisories/GHSA-5j6m-rr83-rpj7nvdVendor AdvisoryMitigation
- www.vulncheck.com/advisories/snipe-it-before-8.7.0-ssrf-via-ipv6-transition-address-bypassnvdThird Party Advisory
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