CVE-2026-66256

High

Description

** UNSUPPORTED WHEN ASSIGNED ** Deserialization of Untrusted Data vulnerability in Apache Shindig. This issue affects Apache Shindig: all versions. Users with access to the Shindig REST API can send specially-crafted requests to trigger arbitrary code execution on the server. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

SeverityHigh
CVSS7.2
Exploit probability—
ProductApache Shindig
PublishedAug 13, 2026
First seenAug 13, 2026

How to fix

Affected products

ProductAffected versionsFixed in
apache shindigv ≤ 3.0.0—

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