Vulnerability · Published May 19, 2026 · Assigned by Jaspersoft

CVE-2026-6009Jaspersoft Library Deserialisation Vulnerability

High 8.7

In plain English

A high-severity unsafe deserialization in JasperReports IO At-Scale from Jaspersoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.5%top 55.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official description

Java Deserialisation Vulnerability in Jaspersoft Reports Library leads to Remote Code Execution (RCE), potentially allowing code execution on the affected system

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavennet.sf.jasperreports:jasperreports7.0.7GHSA-9wxq-mwqw-8hhg

Affected products (as reported)

Weakness: CWE-502 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References