---
id: CVE-2026-86771
title: >-
  Snipe-IT versions before 8.7.0 fail to HTML-escape the employee_num field in
  the acceptance PDF generator, allowing attackers with users.edit permission to
  inject img tags into TCPDF's writeHTML() function
summary: >-
  Snipe-IT versions before 8.7.0 fail to HTML-escape the employee_num field in
  the acceptance PDF generator, allowing attackers with users.edit permission to
  inject img tags into TCPDF's writeHTML() function. Attackers can craft a
  maliciou…
severity: high
cvss: 7.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L'
cwe:
  - CWE-918
vendor: snipeitapp
product: snipe-it
affected:
  - snipe-it < 8.7.0
patched:
  - snipe-it 8.7.0
published: '2026-09-09'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T20:28:50.710'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86771'
references:
  - url: >-
      https://github.com/grokability/snipe-it/security/advisories/GHSA-73xg-j94v-gjcf
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-server-side-request-forgery-via-employee-num
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.0032
epssPercentile: 0.22201
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-09T14:05:51.358839Z'
ingestedAt: '2026-09-12T22:57:59.183Z'
---

## Overview

Snipe-IT versions before 8.7.0 fail to HTML-escape the employee_num field in the acceptance PDF generator, allowing attackers with users.edit permission to inject img tags into TCPDF's writeHTML() function. Attackers can craft a malicious employee_num value containing an img tag with an arbitrary HTTP(S) URL to trigger server-side requests to internal services, cloud metadata endpoints, or external targets when a victim signs an asset acceptance.

## Affected

- `snipe-it < 8.7.0`

## Remediation

Upgrade past the affected range:

- `snipe-it 8.7.0`