CVE-2026-86751

high

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.

References

https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-arbitrary-file-read-and-ssrf-via-markdown

https://github.com/grokability/snipe-it/security/advisories/GHSA-f3vq-g24v-xc2g

Details

Source: Mitre, NVD

Published: 2026-09-09

Updated: 2026-09-09

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:P/A:N

Severity: High

CVSS v3

Base Score: 8.5

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

Severity: High

CVSS v4

Base Score: 8.4

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N

Severity: High

EPSS

EPSS: 0.00247