CVE-2026-16626 JasperReports Server: XXE Injection Vulnerability (Unauthenticated)

Critical 9.3 Published Updated

Unauthenticated attackers can exploit an XML External Entity vulnerability in JasperReports Server to read sensitive data or cause denial of service.

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

What is CVE-2026-16626?

CVE-2026-16626 is a critical vulnerability in Jaspersoft JasperReports Server, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper restriction of XML external entity reference vulnerability (unauthenticated) in Jaspersoft JasperReports Server.

This issue affects JasperReports Server: from 9.0.0 before HF-9 and from 10.0.0 before HF-10.

Weakness: CWE-611

Which versions are affected by CVE-2026-16626?

How do I fix CVE-2026-16626?

No fix has been published for CVE-2026-16626 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-16626 being exploited?

There is no known exploitation of CVE-2026-16626 in the wild and no public exploit code.

Sources

Also known as GHSA-p2q7-r6vq-359j, UBUNTU-CVE-2026-16626.

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