Vulnerability in Nationalsecurityagency Ghidra
CVE-2026-115503
Ghidra before 12.2 contains an improper handling of highly compressed data vulnerability in ExtensionUtils.unzipToInstallationFolder() that allows attackers to exhaust disk space. Attackers can persuade users to install a crafted zip bomb extension archive that expands without size limits, causing later writes by Ghidra and other applications to fail.
Published .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-mcjr-7qqr-m3w8 (vendor-advisory)
- github.com/NationalSecurityAgency/ghidra/commit/2c2bc5be182d655c9df418ac35b9782… (patch)
- github.com/NationalSecurityAgency/ghidra/releases/tag/Ghidra_12.2_build (release-notes)
- github.com/NationalSecurityAgency/ghidra (product)
- www.vulncheck.com/advisories/ghidra-before-12.2-denial-of-service-via-compresse… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-115503?
- CVE-2026-115503 is a medium-severity vulnerability in Nationalsecurityagency Ghidra, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 5.5/10. Published 2026-10-22.
- How severe is CVE-2026-115503?
- Medium severity. CVSS v3 base score is 5.5 out of 10.