CVE-2026-49495
Ghidra 10.2 < 12.1 - Denial of Service via Circular Reference in Mach-O Export Trie Parser
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.
INFO
Published Date :
June 10, 2026, 2:16 p.m.
Last Modified :
June 11, 2026, 7:49 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Ghidra to version 12.1 or later.
- Avoid processing untrusted Mach-O files.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-49495.
| URL | Resource |
|---|---|
| https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-wm33-9f68-3vjg | Exploit Vendor Advisory Mitigation |
| https://www.vulncheck.com/advisories/ghidra-denial-of-service-via-circular-reference-in-mach-o-export-trie-parser | Third Party Advisory |
| https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-wm33-9f68-3vjg | Exploit Vendor Advisory Mitigation |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-49495 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-49495
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-49495 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-49495 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 11, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:* versions from (including) 10.2 up to (excluding) 12.1 Added Reference Type CISA-ADP: https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-wm33-9f68-3vjg Types: Exploit, Mitigation, Vendor Advisory Added Reference Type VulnCheck: https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-wm33-9f68-3vjg Types: Exploit, Mitigation, Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/ghidra-denial-of-service-via-circular-reference-in-mach-o-export-trie-parser Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 10, 2026
Action Type Old Value New Value Added Reference https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-wm33-9f68-3vjg -
New CVE Received by [email protected]
Jun. 10, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Added CWE CWE-835 Added Reference https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-wm33-9f68-3vjg Added Reference https://www.vulncheck.com/advisories/ghidra-denial-of-service-via-circular-reference-in-mach-o-export-trie-parser