radareorg radare2 up to 6.2.1 Binary Format Plugins execvp bclass os command injection

Summaryinfo

A vulnerability was found in radareorg radare2 up to 6.2.1. It has been classified as problematic. Affected by this issue is the function execvp of the component Binary Format Plugins. Performing a manipulation of the argument bclass results in os command injection. This vulnerability is cataloged as CVE-2026-108387. The attack must be initiated from a local position. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in radareorg radare2 up to 6.2.1. This affects the function execvp of the component Binary Format Plugins. The manipulation of the argument bclass with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.2, attacker-controlled data from several binary format plugins could reach RBinInfo->bclass. Opening or analyzing a crafted Pebble or Sega Mega Drive binary could place a dbg:// URI in bclass, causing radare2 to reopen the input through the debug input/output plugin and ultimately pass attacker-controlled arguments to execvp(). This could execute commands with the privileges of the radare2 process without an explicit debugging command. This issue is fixed in version 6.2.2.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-108387 since 10/09/2026. The exploitability is told to be easy. An attack has to be approached locally. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading to version 6.2.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Programming Tool Software

Vendor

• radareorg

Name

• radare2

Version

• 6.2.0
• 6.2.1

License

• open-source

Website

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

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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