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OpenAdvisories
High · 7.8 CVE-2026-40527 EUVD-2026-23534GHSA-4pc8-6qgf-fgv2

radare2 Command Injection via DWARF Parameter Names

Published Apr 17, 2026 · Updated Nov 8, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
radareorg radare2 — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu 26.10 radare2 No fix yet —
Ubuntu 26.04 LTS radare2 No fix yet —
Ubuntu 25.10 radare2 No fix yet —
Ubuntu 16.04 LTS radare2 No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 24.04 LTS radare2 No fix yet —
Ubuntu Pro 20.04 LTS radare2 No fix yet —
Ubuntu Pro 18.04 LTS radare2 No fix yet —
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 radare2 6.2.2-bp160.1.1 openSUSE-SU-2026:21988-1

Advisories 1

References