SSRF in Grokability Snipe-It
CVE-2026-86771
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L.
EPSS exploit prediction
EPSS: 0.003 (23.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/grokability/snipe-it/security/advisories/GHSA-73xg-j94v-gjcf (Exploit, vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/snipe-it-before-8.7.0-server-side-request-forgery-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-86771?
- CVE-2026-86771 is a high-severity vulnerability in Grokability Snipe-It, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.6/10. Published 2026-09-09.
- How severe is CVE-2026-86771?
- High severity. CVSS v3 base score is 7.6 out of 10.