Go to homepageCyberStrike

Menu

Star on GitHub · 3.4k
Sign inDownload

CVE-2026-86734

6.5 · MEDIUM

Snipe-IT before 8.7.1 fails to validate the length of the note field in the POST /account/accept/{acceptance} endpoint, allowing authenticated users to submit unbounded input that reaches synchrono…

Published Sep 8, 2026snipeitappCWE-400EPSS 0.55%

Overview

CVE-2026-86734 is a medium-severity vulnerability affecting snipeitapp snipe-it. It was published on September 8, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Snipe-IT before 8.7.1 fails to validate the length of the note field in the POST /account/accept/{acceptance} endpoint, allowing authenticated users to submit unbounded input that reaches synchronous CommonMark rendering. Attackers can submit large note values to exhaust PHP worker CPU and cause denial of service through resource exhaustion in the markdown parsing pipeline.

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, < 8.7.1Affected

References

GitHubgithub.com/grokability/snipe-it/commit/66770cfe20cb135e2b7022c7a83d01e6783c914aGitHubgithub.com/grokability/snipe-it/security/advisories/GHSA-4vcv-fc5x-jjwvRefwww.vulncheck.com/advisories/snipe-it-before-8.7.1-denial-of-service-via-unbounded-note-field

How CyberStrike helps

Frequently asked questions

What is CVE-2026-86734?

CVE-2026-86734 is a medium-severity vulnerability affecting snipeitapp snipe-it. It was published on September 8, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-86734?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-86734?

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-2026-86734?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-86734 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.

Related MEDIUM CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999
LiveWatch live →