CVE-2026-34717 OpenProject: SQL Injection in Cost Reporting =n Operator via parse_number_string

Critical 9.9 Published Updated

Attackers can inject SQL via the =n operator in cost reporting to read or modify database contents in OpenProject.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-34717?

CVE-2026-34717 is a critical SQL injection vulnerability in opf openproject, published on 2 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenProject is an open-source, web-based project management software. Prior to version 17.2.3, the =n operator in modules/reporting/lib/report/operator.rb:177 embeds user input directly into SQL WHERE clauses without parameterization. This issue has been patched in version 17.2.3.

Weakness: CWE-89

Which versions are affected by CVE-2026-34717?

It affects 1 product.

Products include Openproject Openproject.

How do I fix CVE-2026-34717?

No fix has been published for CVE-2026-34717 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2026-34717 being exploited?

There is no known exploitation of CVE-2026-34717 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-5rrm-6qmq-2364.

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