TI-2026-18162 Aliases CVE-2026-22601

OpenProject is Vulnerable to Code Execution in E-Mail function

MEDIUM 45CWE-77Published 2026-01-10 · Updated 2026-01-12

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

OpenProject is an open-source, web-based project management software. For OpenProject version 16.6.1 and below, a registered administrator can execute arbitrary command by configuring sendmail binary path and sending a test email. This issue has been patched in version 16.6.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00378 31st percentileScored 2026-11-07

Fix Fixed openproject (opf): 16.6.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
opf	openproject	before 16.6.2	16.6.2	Patch available	CNA

openproject Vendoropf Affected before 16.6.2 Fixed in 16.6.2 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:openproject:openproject::::::::	before 16.6.2	Vulnerable	opf

cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:* Versions before 16.6.2 Vulnerable ·opf

Remediation

Fix · CNA openproject (opf) Fixed in 16.6.2

Timeline

2026-10-02 Threatist record created from CVE-2026-22601

References

Advisory 1

https://github.com/opf/openproject/security/advisories/GHSA-9vrv-7h26-c7jc

Other 1

https://github.com/opf/openproject/releases/tag/v16.6.2

TI-2019-08673 A SQL injection vulnerability in the activities API in OpenProject before 8.3.2 allows a… CVSS 3.0HIGH 8.1
TI-2026-26047 OpenProject: 2FA OTP Verification Missing Rate Limiting CVSS 3.1HIGH 7.4
TI-2026-29552 OpenProject has Cross-Project Meeting Agenda Item Injection via Unscoped Section Lookup CVSS 3.1HIGH 7.1
TI-2023-14850 OpenProject user sessions not terminated after activation of 2FA CVSS 3.1MEDIUM 6.5
TI-2026-26961 OpenProject: SQL Injection in Cost Reporting =n Operator via parse_number_string CVSS 3.1CRITICAL 9.9
TI-2026-20830 Command Injection on OpenProject repositories leads to Remote Code Execution CVSS 4.0CRITICAL 9.4

See all 36 →

Sources

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