CVE-2026-86735
mediumsnipe-it versions before 8.7.0 contain a server-side request forgery vulnerability in the ExternalUrl validation rule that fails to detect IPv6 transition addr…
Vendor / product: Snipeitapp — snipe-it
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.
CVSS
5.0
5.0 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:N Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-09-08 16:18
Modified: 2026-09-09 13:45
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 06:51 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
snipeitapp / snipe-it <8.7.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/grokability/snipe-it/security/advisories/GHSA-5j6m-rr83-rpj7
References
- https://github.com/grokability/snipe-it/security/advisories/GHSA-5j6m-rr83-rpj7 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-ssrf-via-ipv6-transition-addres... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:51 UTC · record ↗