What is the CVSS score of CVE-2026-91079?

CVE-2026-91079 has a CVSS 4.0 base score of 6.3 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N. EPSS exploitation probability: 0.4%.

Platform CVE-2026-91079

EUVD-2026-77714 MEDIUM

Server-Side Request Forgery (SSRF) (CWE-918)

2026-09-14 VulnCheck

GHSA-prm2-rg4g-w438

SSRF Platform Hcengineering

6.3

CVSS 4.0 · Vendor: VulnCheck

View

Vulnerability Assessment

Weakness

CWE

CWE-918

OWASP Top 10:2025

A01:2025 - Broken Access Control

ASVS 5.0

V4 - API and Web Service URL allowlisting, SSRF prevention

MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Credential Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Server-side request forgery in the Huly Platform print service (pod-print) through version 0.7.426 lets an authenticated workspace member hand an arbitrary URL to the print endpoint, which Puppeteer fetches and renders back as a downloadable PDF or image. Because no hostname allowlist is enforced, the headless browser can be steered at internal metadata services (e.g. cloud IMDS endpoints) and other network-internal hosts, turning the platform into an internal network proxy and credential-leak vector. No CISA KEV listing and no publicly available exploit code were identified at time of analysis, and CISA SSVC records exploitation as 'none' with automatable 'no'.

Affected VersionsENISA

platform 0 ≤0.7.426

Affected Packages

euvd platform no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (VulnCheck) PRIMARY 6.3 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

Vulnerable system: Confidentiality

None

Vulnerable system: Integrity

Low

Vulnerable system: Availability

None

Subsequent system: Confidentiality

High

Subsequent system: Integrity

Low

Subsequent system: Availability

None

DescriptionCVE.org

Huly Platform through 0.7.426 contains a server-side request forgery vulnerability in the print service due to missing hostname allowlist validation. Authenticated workspace members can supply arbitrary URLs to the print endpoint, which Puppeteer renders and returns as downloadable PDFs or images, enabling access to internal metadata services and network hosts.

Threat Intelligence Overview

EPSS Score

0.4%

Top 71% exploitable

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.4%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation

None

System Exposure· derived

Open

Automatable

Human Impact· derived

Medium

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Server-Side Request Forgery HIGH

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

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References

Advisories & patches

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-91079 REF https://github.com/hcengineering/platform REF https://github.com/hcengineering/platform/blob/v0.7.426/services/print/pod-print/src/config.ts REF https://github.com/hcengineering/platform/blob/v0.7.426/services/print/pod-print/src/server.ts REF https://github.com/hcengineering/platform/issues/10908 REF https://www.vulncheck.com/advisories/huly-platform-through-0.7.426-ssrf-via-print-service

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