Bug 2447696 (CVE-2026-4174)

Summary: CVE-2026-4174 Radare2: Radare2: Local resource consumption via Mach-O File Parser
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Radare2. A local attacker could exploit a vulnerability in the Mach-O File Parser component, specifically within the `walk_exports_trie` function. By manipulating this component, an attacker can cause excessive resource consumption, potentially leading to a Denial of Service (DoS). An exploit for this issue has been publicly disclosed.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2447930, 2447931    
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Description OSIDB Bzimport 2026-03-15 11:01:41 UTC 
A vulnerability has been found in Radare2 5.9.9. This issue affects the function walk_exports_trie 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".