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CVE-2026-86751

9.6, critical

Grokability snipe-it External Control of File Name or Path Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.6, critical critical CVSS v3.1
EPSS, next 30 days
0.4% higher than 29.4% of scored CVEs
Exploitation
Exploit code published
Published
9 Sept 2026a month ago

Description

Snipe-IT before 8.7.0 fails to properly sanitize markdown image syntax in note fields, allowing authenticated users to read arbitrary server files and issue server-side HTTP requests. Attackers can submit markdown image syntax in checkout acceptance notes that survive HTML escaping, are expanded by CommonMark parser, and resolved by laravel-mail-auto-embed via file_get_contents or curl, exfiltrating sensitive files like .env containing APP_KEY.

Details

Vendor
Grokability
Product
snipe-it
Weakness
CWE-73 (opens in a new tab)
Status
Analyzed
Updated
14 Sept 2026
Assigner
disclosure@vulncheck.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

References 2

Exploit code 1

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Grokability CVEs

Every Grokability CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-62368 Grokability snipe-it Cross-Site Scripting Vulnerability EPSS 0.4% 8.4, high
  • CVE-2026-63493 Grokability snipe-it Authentication Bypass Using an Alternate Path or Channel Vulnerability EPSS 0.3% 8.1, high
  • CVE-2026-86733 Grokability snipe-it OS Command Injection Vulnerability EPSS 0.6% 7.2, high
  • CVE-2026-86738 Grokability snipe-it Cross-Site Scripting Vulnerability EPSS 0.5% 8.7, high

Beyond this page

Is CVE-2026-86751 in your network?

This page tells you how dangerous CVE-2026-86751 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-86751 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.