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CVE-2026-8257

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CVE-2026-8257

Published: May 11, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

3.3

LOW

Description

A vulnerability was detected in WebAssembly Binaryen up to 117. This issue affects the function IRBuilder::makeBrOn of the file src/wasm/wasm-ir-builder.cpp of the component BrOn Parser. Performing a manipulation results in reachable assertion. The attack needs to be approached locally. The exploit is now public and may be used. The patch is named 1251efbc1ea471c1311d2726b2bbe061ff2a291c. It is suggested to install a patch to address this issue.

VendorProductVersions

WebAssembly

Binaryen

affected
117

Weaknesses (CWE)

CWE-617

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

References

VDB-362554 | CTI Indicators (IOB, IOC, IOA)
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