CVE-2026-86771Public exploitNetwork attack vector

SSRF via unescaped acceptance PDF employee number

Published Sep 9, 2026 · Updated Sep 9, 2026

SSRF in Snipe-IT 8.6.3 allows remote authenticated users to reach server-accessible HTTP(S) endpoints through acceptance PDFs. CheckoutAcceptance::generateAcceptancePdf() passes an unescaped employee_num value to TCPDF writeHTML(), whose image handling fetches attacker-selected URLs. Exploitation requires users.edit permission and a subsequent signed asset acceptance; resulting requests can reach internal services or delay acceptance processing.

CVSS severity7.7
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Snipe-IT 8.6.3 allows remote authenticated users to reach server-accessible HTTP(S) endpoints through acceptance PDFs. CheckoutAcceptance::generateAcceptancePdf() passes an unescaped employee_num value to TCPDF writeHTML(), whose image handling fetches attacker-selected URLs. Exploitation requires users.edit permission and a subsequent signed asset acceptance; resulting requests can reach internal services or delay acceptance processing.

The record

CVE
CVE-2026-86771
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
Grokability, Inc.
Product
Snipe-IT
Classifications
CWE-79, CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.6.3 <8.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grokability, Inc. · Snipe-ITversion=8.6.3 <8.7.0

Published CVSS scores

8.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:L/SC:H/SI:N/SA:L
7.6VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L
7.7GrokabilityCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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