Is CVE-2026-115503 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-115503 being exploited in the wild.

How severe is CVE-2026-115503?

Medium severity, with a CVSS score of 5.5, published 22 October 2026.

Which products and versions are affected?

National Security Agency Ghidra before 12.2.

Is there a fix for CVE-2026-115503?

Yes: fixed in Ghidra 12.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-115503 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-115503?

Check whether you run National Security Agency Ghidra at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-115503: Ghidra zip bomb in extension extraction

CVE-2026-115503 · Severity: medium · CVSS 5.5 · Published 2026-10-22

Ghidra is a reverse engineering framework used by security researchers and analysts to examine software. A vulnerability in its extension installation mechanism allows attackers to craft malicious extension archive files that, when installed, expand without limits and exhaust disk space, preventing Ghidra and other applications from writing data to the system.

Technologies: National Security Agency Ghidra. Vendors: National Security Agency.

Quick answers

Is CVE-2026-115503 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-115503 being exploited in the wild.
How severe is CVE-2026-115503?: Medium severity, with a CVSS score of 5.5, published 22 October 2026.
Which products and versions are affected?: National Security Agency Ghidra before 12.2.
Is there a fix for CVE-2026-115503?: Yes: fixed in Ghidra 12.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-115503 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-115503?: Check whether you run National Security Agency Ghidra at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: Ghidra 12.2

Technical details

The vulnerability exists in ExtensionUtils.unzipToInstallationFolder(), which fails to enforce size limits on extracted zip archive contents. An attacker can create a zip bomb (a highly compressed archive that expands to enormous size) and distribute it as an extension. When a user installs the crafted extension, the uncontrolled extraction exhausts available disk space, causing denial of service to the victim system.

Affected products

National Security Agency Ghidra before 12.2

Timeline

2026-10-22: disclosed
2026-09-01: patched

References

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