radareorg radare2 up to 6.1.x Mach-O LC_DATA_IN_CODE parser out-of-bounds

Summaryinfo

A vulnerability classified as problematic was found in radareorg radare2 up to 6.1.x. This issue affects some unknown processing of the component Mach-O LC_DATA_IN_CODE parser. Executing a manipulation can lead to out-of-bounds. This vulnerability appears as CVE-2026-81884. The attack requires local access. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in radareorg radare2 up to 6.1.x and classified as problematic. This vulnerability affects an unknown function of the component Mach-O LC_DATA_IN_CODE parser. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. CVE summarizes:

radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Mach-O LC_DATA_IN_CODE parser was vulnerable because the Mach-O LC_DATA_IN_CODE parser trusted dataoff and datasize and allowed a final partial record to be processed. The vulnerability is triggered by opening a crafted Mach-O file while the non-default bin.verbose option is enabled. When datasize was not a multiple of data_in_code_entry, the last iteration read beyond the allocated buffer. This can cause a heap out-of-bounds read and possible process termination; no attacker-observable memory disclosure has been demonstrated. This issue is fixed in version 6.2.0.

The advisory is available at github.com. This vulnerability was named CVE-2026-81884 since 08/27/2026. The exploitation appears to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 6.2.0 eliminates this vulnerability.

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Productinfo

Type

• Programming Tool Software

Vendor

• radareorg

Name

• radare2

Version

• 6.0
• 6.1

License

• open-source

Website

• Product: https://github.com/radareorg/radare2/

CPE 2.3info

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• 🔒

CPE 2.2info

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• 🔒

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