Double Free in Rizin
CVE-2026-31053
A double free vulnerability exists in librz/bin/format/le/le.c in the function le_load_fixup_record(). When processing malformed or circular LE fixup chains, relocation entries may be freed multiple times during error handling. A specially crafted LE binary can trigger heap corruption and cause the application to crash, resulting in a denial-of-service condition. An attacker with a crafted binary could cause a denial of service when the tool is integrated on a service pipeline.
Vulnerability class: Double Free
EPSS: 0.001 (4.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Rizin — versions 0.8.1
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
- cve@mitre.org (Patch, Issue Tracking)
Frequently asked questions
- What is CVE-2026-31053?
- CVE-2026-31053 is a medium-severity vulnerability in Rizin, classified under Double Free. CVSS score: 6.2/10. Published 2026-04-06.
- How severe is CVE-2026-31053?
- Medium severity. CVSS v3 base score is 6.2 out of 10.