Vulnerability · Published Jun 10, 2026 · Assigned by VulnCheck

CVE-2026-49495Ghidra 10.2 < 12.1 - Denial of Service via Circular Reference in Mach-O Export Trie Parser

Medium 5.5

In plain English

A medium-severity infinite loop in ghidra from nationalsecurityagency. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 4% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.2%top 95.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Ghidra 10.2 before 12.1 contains an uncontrolled resource consumption vulnerability in ExportTrie.parseTrie() that lacks cycle detection when traversing Mach-O binary export tries. A crafted Mach-O binary with circular references in the export trie causes unbounded queue growth and exponential string concatenation, triggering OutOfMemoryError that crashes the entire JVM and loses all unsaved work.

Affected products (as reported)

Vendor	Product	Versions
nationalsecurityagency	ghidra	10.2 – before 12.1

Weakness: CWE-835 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

GitHub Security Advisory (GHSA-wm33-9f68-3vjg) vendor-advisory
https://www.vulncheck.com/advisories/ghidra-denial-of-service-via-circular-reference-in-mach-o-export-trie-parser third-party-advisory