CVE-2026-86735

mediumCVSS 5covered by 1 sourcefirst seen 2026-09-08

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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Exploitation outlook

Low exploitation risk0.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-86735: snipe-it versions before 8.7.0 contain a server-side request forgery vulnerability in the Exte…nvd · 2026-09-08

External references

NVD record for CVE-2026-86735

CVE.org record

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