Code execution via unfiltered client RMI deserialization
Published Jun 10, 2026 · Updated Jun 10, 2026
Unsafe deserialization in Ghidra before 12.1 allows remote attackers to execute arbitrary code through a crafted Shared Project file. ServerConnectTask accepts the first pre-authentication RMI registry response through ObjectInputStream.readObject() without an ObjectInputFilter, exposing a bundled Jython 2.7.4 gadget chain. Opening the project through File → Open Project silently follows its ghidra:// repository URL; no credentials or nondefault settings are required before commands run with the Ghidra process privileges.
Summary
What happened
Unsafe deserialization in Ghidra before 12.1 allows remote attackers to execute arbitrary code through a crafted Shared Project file. ServerConnectTask accepts the first pre-authentication RMI registry response through ObjectInputStream.readObject() without an ObjectInputFilter, exposing a bundled Jython 2.7.4 gadget chain. Opening the project through File → Open Project silently follows its ghidra:// repository URL; no credentials or nondefault settings are required before commands run with the Ghidra process privileges.
The record
- CVE
- CVE-2026-52751
- Published
- Jun 10, 2026
- Updated
- Jun 10, 2026
- Vendor
- National Security Agency
- Product
- Ghidra
- Classifications
- CWE-502, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 10, 2026CVE publishedPublication date reported by the CVE source.
- Jun 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <12.1
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Jython PyMethod RMI deserialization proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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