CVE-2026-40499 radare2 < 6.1.4 Command Injection via PDB Parser print_gvars()

What is CVE-2026-40499?

CVE-2026-40499 is a high-severity command injection vulnerability in Radare Radare2, published on 15 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

radare2 prior to version 6.1.4 contains a command injection vulnerability in the PDB parser's print_gvars() function that allows attackers to execute arbitrary commands by embedding a newline byte in the PE section header name field. Attackers can craft a malicious PDB file with specially crafted section names to inject r2 commands that are executed when the idp command processes the file.

Weakness: CWE-78

Which versions are affected by CVE-2026-40499?

It affects 1 product.

Products include Radare Radare2.

How do I fix CVE-2026-40499?

Upgrade to a fixed version.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-40499 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40499 exists.

Other vulnerabilities in Radare Radare2

• CVE-2025-1864 Buffer Overflow and Potential Code Execution in Radare2 Critical 10.0
• CVE-2025-1744 Out-of-bounds Write in radare2 Critical 10.0
• CVE-2021-32494 Denial of service in radare2 Critical 10.0
• CVE-2021-32495 Use after free in radare2 Critical 10.0
• CVE-2024-29646 Memory corruption in n/a Critical 9.8

All Radare Radare2 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7rhq-9q45-5gm4, MGASA-2026-0198, UBUNTU-CVE-2026-40499, openSUSE-SU-2026:10555-1.