CVE-2026-52756: Ghidra < 12.2 - Unauthenticated Path Traversal in Debugger ISF Server

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-06-10 · updated 2026-10-26
Weakness: CWE-22

Description

Ghidra before 12.2 contains an unauthenticated path traversal vulnerability in the IsfServer that accepts TCP connections and passes client-supplied namespace strings directly to filesystem operations without validation. Remote attackers can connect to port 54321 and send crafted protobuf messages with traversal sequences to enumerate filesystem paths and probe arbitrary files.

Affected products

nationalsecurityagency ghidra: through 12.1.2

References

https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-8pr2-46mf-v2r2
https://www.vulncheck.com/advisories/ghidra-unauthenticated-path-traversal-in-debugger-isf-server
https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-8pr2-46mf-v2r2

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