CVE-2026-31053Public exploit

Application crash via double-freed LE relocations

Published Apr 6, 2026 · Updated Apr 6, 2026

Double free in Rizin 0.8.1 and 0.9.0 allows attackers to crash the application by opening a crafted Linear Executable binary. The LE relocation list stores LE_reloc objects, but malformed-record handling invokes the incompatible rz_bin_reloc_free destructor before list cleanup frees the allocation again. Exploitation requires Rizin or an integrated analysis pipeline to process the file, causing heap corruption and a segmentation-fault service interruption.

CVSS severity6.2
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in Rizin 0.8.1 and 0.9.0 allows attackers to crash the application by opening a crafted Linear Executable binary. The LE relocation list stores LE_reloc objects, but malformed-record handling invokes the incompatible rz_bin_reloc_free destructor before list cleanup frees the allocation again. Exploitation requires Rizin or an integrated analysis pipeline to process the file, causing heap corruption and a segmentation-fault service interruption.

The record

CVE
CVE-2026-31053
Published
Apr 6, 2026
Updated
Apr 6, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-415, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.2CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-415Double Free
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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