CVE-2026-14759 radareorg radare2 RBinJava Line Number Table class.c r_bin_java_inner_classes_attr_calc_size heap-based overflow
A heap-based buffer overflow in radare2's Java binary parser allows local attackers to execute arbitrary code or cause a denial of service via crafted files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-14759?
CVE-2026-14759 is a medium-severity memory corruption vulnerability in Radare Radare2, published on 5 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A security flaw has been discovered in radareorg radare2 up to 6.1.6. This issue affects the function r_bin_java_inner_classes_attr_calc_size of the file shlr/java/class.c of the component RBinJava Line Number Table Parser. Performing a manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The patch is named cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87. To fix this issue, it is recommended to deploy a patch.
Which versions are affected by CVE-2026-14759?
It affects 1 product.
Products include Radare Radare2.
How do I fix CVE-2026-14759?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-14759 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-14759 exists.
Other vulnerabilities in Radare Radare2
Sources
Also known as GHSA-5c42-mjgc-pm69, UBUNTU-CVE-2026-14759.