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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (5.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Rizin — versions 0.8.1
Weakness classification (CWE)
References
- github.com/rizinorg/rizin/issues/5753 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/rizinorg/rizin/pull/5795 (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.