What is CVE-2026-52756?

CVE-2026-52756 is a medium-severity vulnerability in Nationalsecurityagency Ghidra, classified under Path Traversal. CVSS score: 4.8/10. Published 2026-06-10.

How severe is CVE-2026-52756?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Path Traversal in Nationalsecurityagency Ghidra

CVE-2026-52756

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.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.005 (38.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L.

Affected products

Nationalsecurityagency Ghidra — versions 0, 12.2
Nsa Ghidra

Weakness classification (CWE)

CWE-22 — Path Traversal

References

disclosure@vulncheck.com (Exploit, vendor-advisory, Vendor Advisory)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-52756?: CVE-2026-52756 is a medium-severity vulnerability in Nationalsecurityagency Ghidra, classified under Path Traversal. CVSS score: 4.8/10. Published 2026-06-10.
How severe is CVE-2026-52756?: Medium severity. CVSS v3 base score is 4.8 out of 10.