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CVE-2026-27727 is an arbitrary code execution vulnerability in mchange-commons-java, a Java utility library that includes its own implementation of JNDI dereferencing behavior similar to early JDK implementations. The vulnerable code supports remote factoryClassLocation values, allowing code to be downloaded and invoked inside a running application during resolution of a crafted javax.naming.Reference or related serialized object. If an attacker can cause an application to process a malicious JNDI Reference or serialized object through this implementation, the application may retrieve attacker-controlled classes from a remote location and execute them. Because this JNDI dereferencing logic is implemented independently of the JDK, it can bypass the protections introduced in hardened JDK behavior such as the default-disabled trustURLCodebase setting. Libraries such as c3p0 may expose reachable paths to the vulnerable functionality when they rely on mchange-commons-java for reference resolution. Starting in version 0.4.0, the JNDI functionality is gated by configuration parameters that default to restrictive values.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remote code execution vulnerability in the mchange-commons-java dependency affecting Bamboo Data Center and Crucible Server.
An arbitrary code execution vulnerability in mchange-commons-java via JNDI dereferencing of crafted objects.
An arbitrary code execution vulnerability in mchange-commons-java caused by JNDI dereferencing of crafted objects.
An arbitrary code execution vulnerability in mchange-commons-java caused by JNDI dereferencing of crafted objects.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.