CVE-2026-108387

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{"bugzilla": {"description": "radare2: radare2: Arbitrary code execution via crafted binary file", "id": "2567733", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2567733"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-78", "details": ["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.", "A flaw was found in radare2. An attacker can exploit this vulnerability by convincing a user to open or analyze a specially crafted binary file. When parsed, malicious data causes radare2 to invoke an internal debugging handler that executes system commands with attacker-supplied arguments. This issue can lead to arbitrary code execution with the permissions of the user running radare2."], "mitigation": {"lang": "en:us", "value": "Avoid opening or analyzing untrusted binary files with radare2. If analyzing untrusted or suspicious files is necessary, run the utility within an isolated, unprivileged container or sandboxed environment to prevent unauthorized command execution from affecting the host system.\nCaveats: Sandboxing or container isolation may restrict radare2 from accessing host file paths and system debuggers, requiring target binaries to be explicitly shared into the isolated environment."}, "name": "CVE-2026-108387", "public_date": "2026-11-04T22:26:59Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-108387\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-108387\nhttps://github.com/radareorg/radare2/commit/59899e6b8b18772ce9460b4caa2ced7f257fae76\nhttps://github.com/radareorg/radare2/commit/c9de154cafd788d66535435e43ad6a54aed7ea2a\nhttps://github.com/radareorg/radare2/issues/26600\nhttps://github.com/radareorg/radare2/releases/tag/6.2.2\nhttps://github.com/radareorg/radare2/security/advisories/GHSA-px7c-gwvj-73vf"], "statement": "This vulnerability is rated as an Important severity flaw because successful exploitation enables arbitrary command execution with the privileges of the user running radare2, though it requires local interaction rather than exposing an unattended network service. In Red Hat environments, radare2 operates as an interactive command-line reverse engineering framework invoked locally by analysts. Because parsing malicious binary formats triggers unintended invocation of internal debugging facilities, inspecting untrusted files can lead to full compromise of the local user session.", "threat_severity": "Important"}

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