CVE-2026-31053
Rz Binary Denial of Service Double Free Vulnerability
Description
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.
INFO
Published Date :
April 6, 2026, 3:17 p.m.
Last Modified :
April 14, 2026, 7:12 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update the librz library to the latest version.
- Recompile the application with the updated library.
- Validate fixup chain handling logic.
- Sanitize input LE binary data.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-31053.
| URL | Resource |
|---|---|
| https://github.com/rizinorg/rizin/issues/5753 | Exploit Issue Tracking Third Party Advisory |
| https://github.com/rizinorg/rizin/pull/5795 | Issue Tracking Patch |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-31053 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-31053
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-31053 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-31053 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 14, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:rizin:rizin:0.8.1:*:*:*:*:*:*:* Added Reference Type MITRE: https://github.com/rizinorg/rizin/issues/5753 Types: Exploit, Issue Tracking, Third Party Advisory Added Reference Type MITRE: https://github.com/rizinorg/rizin/pull/5795 Types: Issue Tracking, Patch -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 06, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-415 -
New CVE Received by [email protected]
Apr. 06, 2026
Action Type Old Value New Value Added Description 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. Added Reference https://github.com/rizinorg/rizin/issues/5753 Added Reference https://github.com/rizinorg/rizin/pull/5795