CVE-2026-86735 snipe-it before 8.7.0 SSRF via IPv6 transition address bypass
Super-admins can bypass SSRF protections using IPv6 transition addresses to access internal services or cloud metadata in Snipe-IT.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86735?
CVE-2026-86735 is a medium-severity server-side request forgery vulnerability in Snipeitapp Snipe-It, published on 8 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-86735?
It affects 1 product.
Products include Snipeitapp Snipe-It.
How do I fix CVE-2026-86735?
No fix has been published for CVE-2026-86735 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-86735 being exploited?
There is no known exploitation of CVE-2026-86735 in the wild and no public exploit code.
Other vulnerabilities in Snipeitapp Snipe-It
- CVE-2025-63601 File upload in n/a
- CVE-2026-37709 Snipe-IT has insecure permissions in file uploads
- CVE-2026-86738 Snipe-IT before 8.7.0 CSS Injection via Custom CSS
- CVE-2026-116199 Snipe-IT before 8.6.3 Authentication Bypass via Google SSO Callback
- CVE-2022-1380 Stored Cross Site Scripting vulnerability in Item name parameter in snipe/snipe-it
Sources
Also known as GHSA-5j6m-rr83-rpj7, GHSA-m3v2-6c3r-vqh9.