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Vulnerability record · CVE-2026-86751 · published 9 September 2026

CVE-2026-86751: Snipeitapp snipe-it vulnerability

Snipeitapp · Snipe It

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.

8.4 CVSS 4.0 High EPSS 0.37% · top 71.6% CWE-73 · CWE-73
8.4CVSS 4.0 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
14 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/grokability/snipe-it/security/advisories/GHSA-f3vq-g24v-xc2g ExploitVendor Advisory
https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-arbitrary-file-read-and-ssrf-via-markdown Third Party Advisory
https://github.com/grokability/snipe-it/security/advisories/GHSA-f3vq-g24v-xc2g ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2025-63601Snipeitapp snipe-it unrestricted file upload vulnerabilitySnipe-IT before version 8.3.3 contains a remote code execution vulnerability that allows an authenticated attacker to upload a malicious backup file …EPSS 0.60%9.8CVE-2026-37709Snipeitapp snipe-it improper access control vulnerabilityInsecure Permissions vulnerability in grokability snipe-it v.8.4.0 and before and fixed after 2026-03-10 commit 676a9958 allows a remote attacker to …EPSS 0.79%9.3CVE-2026-86738Snipeitapp snipe-it cross-site scripting vulnerabilitySnipe-IT versions before 8.7.0 contain a CSS injection vulnerability in the Custom CSS field due to incomplete sanitization that reverses HTML encodi…EPSS 0.49%8.8CVE-2023-5511Snipeitapp snipe-it cross-site request forgery vulnerabilityCross-Site Request Forgery (CSRF) in GitHub repository snipe/snipe-it prior to v.6.2.3.EPSS 0.27%8.8CVE-2022-23064Snipeitapp snipe-it injection vulnerabilityIn Snipe-IT, versions v3.0-alpha to v5.3.7 are vulnerable to Host Header Injection. By sending a specially crafted host header in the reset password …EPSS 1.3%8.8CVE-2022-0611Snipeitapp snipe-it missing authorization vulnerabilityMissing Authorization in Packagist snipe/snipe-it prior to 5.3.11.EPSS 1.2%8.8CVE-2021-4130Snipeitapp snipe-it cross-site request forgery vulnerabilitysnipe-it is vulnerable to Cross-Site Request Forgery (CSRF)EPSS 0.46%8.8CVE-2021-3858Snipeitapp snipe-it cross-site request forgery vulnerabilitysnipe-it is vulnerable to Cross-Site Request Forgery (CSRF)EPSS 0.54%

Source: NIST National Vulnerability Database (record CVE-2026-86751), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.