CVE-2026-4174: Radare2 Mach-O File mach0.c walk_exports_trie resource consumption
A vulnerability has been found in Radare2 5.9.9. This issue affects the function walkexportstrie of the file libr/bin/format/mach0/mach0.c of the component Mach-O File Parser. Such manipulation leads to resource consumption. The attack can only be performed from a local environment. The exploit has been disclosed to the public and may be used. The existence of this vulnerability is still disputed at present. Upgrading to version 6.1.2 is capable of addressing this issue. The name of the patch is 4371ae84c99c46b48cb21badbbef06b30757aba0. You should upgrade the affected component. The code maintainer states that, "[he] wont consider this bug a DoS".
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-4174?
CVE-2026-4174 has been classified as a medium severity vulnerability due to its potential for resource consumption.
How do I fix CVE-2026-4174?
To mitigate CVE-2026-4174, upgrade Radare2 to version 6.1.2 or later.
What components are affected by CVE-2026-4174?
CVE-2026-4174 affects the Mach-O File Parser in the libr/bin/format/mach0/mach0.c file.
Can CVE-2026-4174 lead to a denial of service?
Yes, CVE-2026-4174 can result in denial of service due to excessive resource consumption.
In which version of Radare2 was CVE-2026-4174 discovered?
CVE-2026-4174 was discovered in Radare2 version 5.9.9.