CVE-2026-86735CWE-918ssrf

CVE-2026-86735

Medium · published September 8, 2026

CVSS v3.1
5.0
EPSS
0%
Percentile
23.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:N
CVSS v4.0
5.9 · CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00313 · 23.0th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-09-08T20:18Z
Affected products (1)
ProductVersionsFixed in
snipeitapp/snipe-it< 8.7.08.7.0
References (2)
https://github.com/grokability/snipe-it/security/advisories/GHSA-5j6m-rr83-rpj7 · [email protected]https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-ssrf-via-ipv6-transition-address-bypass · [email protected]
EPSS history
Timeline
  • 10 SEP 03:18Z
    EPSS moved — → 0%
    epss
  • 08 SEP 15:14Z
    snipe-it before 8.7.0 SSRF via IPv6 transition address bypass
    cvelistv5