CVE-2026-40527

High

Description

radare2 prior to commit bc5a890 contains a command injection vulnerability in the afsv/afsvj command path where crafted ELF binaries can embed malicious r2 command sequences as DWARF DW_TAG_formal_parameter names. Attackers can craft a binary with shell commands in DWARF parameter names that execute when radare2 analyzes the binary with aaa and subsequently runs afsvj, allowing arbitrary shell command execution through the unsanitized parameter interpolation in the pfq command string.

SeverityHigh

CVSS7.8

Exploit probability—

ProductRadare2

PublishedApr 17, 2026

First seenApr 17, 2026

Weakness typeCWE-78OS command injection

How to fix

Update

radare radare26.1.6 or later

Patches

github.com/radareorg/radare2/commit/bc5a89033db3ecb5b1f7bf681fc6ba4dcfc14683

Affected products

Product	Affected versions	Fixed in
radare radare2	v < 6.1.6	6.1.6

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