Fix CVE-2026-6009: add deserialization class filter to remaining entry points (Fixes #587)#588
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Fix CVE-2026-6009: add deserialization class filter to remaining entry points (Fixes #587)#588jmgomez77 wants to merge 1 commit into
jmgomez77 wants to merge 1 commit into
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…ry points Wire DeserializationClassFilter into VirtualizationObjectInputStream.resolveClass() to protect the virtualization deserialization path. Replace bare ObjectInputStream in JRValueStringUtils.DefaultSerializer with ContextClassLoaderObjectInputStream, which applies the deserialization filter. These two entry points were not covered by the filter introduced in 7.0.4 (commit 827c2f2), leaving them exploitable even when the filter is enabled. Additionally, the filter should default to enabled=true (currently false in default.jasperreports.properties) to protect users who have not explicitly opted in. Includes unit tests covering all deserialization paths.
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Fix (CVE-2026-6009): add deserialization class filter to remaining entry points.
Wire DeserializationClassFilter into VirtualizationObjectInputStream.resolveClass() to protect the virtualization deserialization path.
Replace bare ObjectInputStream in JRValueStringUtils.DefaultSerializer with ContextClassLoaderObjectInputStream, which applies the deserialization filter.
These two entry points were not covered by the filter introduced in 7.0.4 (commit 827c2f2), leaving them exploitable even when the filter is enabled.
Additionally, the filter should default to enabled=true (currently false in default.jasperreports.properties) to protect users who have not explicitly opted in.
This PR is submitted for peer-review.