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CVE-2026-86751

8.5 · HIGH

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.

Published Sep 9, 2026snipeitappCWE-73EPSS 0.37%

Overview

CVE-2026-86751 is a high-severity vulnerability affecting snipeitapp snipe-it. It was published on September 9, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from snipeitapp. Update snipe-it to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
snipeitappsnipe-it>= 0, < 8.7.0Affected

References

GitHubgithub.com/grokability/snipe-it/security/advisories/GHSA-f3vq-g24v-xc2gRefwww.vulncheck.com/advisories/snipe-it-before-8.7.0-arbitrary-file-read-and-ssrf-via-markdownGitHubgithub.com/grokability/snipe-it/security/advisories/GHSA-f3vq-g24v-xc2g

How CyberStrike helps

Frequently asked questions

What is CVE-2026-86751?

CVE-2026-86751 is a high-severity vulnerability affecting snipeitapp snipe-it. It was published on September 9, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).

How severe is CVE-2026-86751?

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-86751?

Check the references section for vendor advisories and patches from snipeitapp. Update snipe-it to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-86751?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-86751 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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