Unbounded entry storage in Ghidra TAR and ZIP file system mount
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.
Summary
Ghidra before 12.2 contains a resource allocation flaw in FileSystemIndexHelper, which TarFileSystem and ZipFileSystem use to store archive entries without limits (CWE-770). An attacker can persuade a user to open or batch-import a crafted TAR or ZIP archive with excessive entries, which exhausts the Java heap and hangs the session. The attack requires user interaction and has no confidentiality or integrity impact.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Ghidra before 12.2 contains a resource allocation without limits vulnerability in FileSystemIndexHelper used by TarFileSystem and ZipFileSystem, which store unbounded archive entries. Attackers can persuade a user to open or batch-import a crafted TAR or ZIP archive with excessive entries to exhaust the Java heap and hang the session.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| NationalSecurityAgency | ghidra | before 12.2 | 12.2 | Patch available | CNA |
- ghidra VendorNationalSecurityAgency Affected before 12.2 Fixed in 12.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:* | before 12.2 | Vulnerable | NationalSecurityAgency |
- cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:* Versions before 12.2 Vulnerable ·NationalSecurityAgency
Remediation
Upgrade NationalSecurityAgency Ghidra to version 12.2 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA ghidra (NationalSecurityAgency) Fixed in 12.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
NationalSecurityAgency ghidra 12.2
5 records Highest priority Priority LOW 5 LOW
Other records, highest priority first
- TI-2026-79482 Resource exhaustion in Ghidra extension archive installationPriority LOW 31
- TI-2026-79485 Denial of service in Ghidra via compressed extension archivePriority LOW 29
- TI-2026-79481 Resource exhaustion in Ghidra via compressed theme archivePriority LOW 29
Timeline
- 2026-10-22 Threatist record created from CVE-2026-115398
- 2026-10-22 Alias added: GHSA-xj66-h4r7-jmmx
- 2026-10-23 Priority changed: MEDIUM → LOW
- 2026-10-23 CISA SSVC decision points changed
References
More NationalSecurityAgency Ghidra vulnerabilities
- TI-2023-08846 Ghidra/RuntimeScripts/Linux/support/launch.sh in NSA Ghidra through 10.2.2 passes… CVSS 3.1CRITICAL 9.8
- TI-2026-37876 Ghidra < 12.1 - SQL Injection via Unescaped Filter Values in BSim Search CVSS 4.0HIGH 8.7
- TI-2026-04310 NSA Ghidra Auto-Analysis Annotation Command Execution CVSS 3.1HIGH 8.8
- TI-2026-37873 Ghidra < 12.0.4 - Path Traversal via Zip Slip in Theme Import CVSS 4.0HIGH 8.4
- TI-2026-37870 Ghidra < 12.0.2 - Path Traversal in Extension Installer via ZIP Entry Names CVSS 4.0HIGH 8.4
- TI-2026-36646 Ghidra < 12.1 - Heap-Use-After-Free in SleighBuilder::generatePointerAdd via Vector Reallocation CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-115398 · CVE Program
- CVE-2026-115398 · NVD
- FIRST EPSS
- GHSA-xj66-h4r7-jmmx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences