CVE-2026-71498: CWE-125: Out-of-bounds Read in uhop node-re2
node-re2 versions prior to 1.26.1 contain an out-of-bounds read vulnerability due to improper handling of truncated multi-byte UTF-8 sequences in Buffers. This flaw allows the native binding to read beyond the allocated buffer while decoding incomplete UTF-8 code points, potentially disclosing adjacent memory contents. The issue is fixed in version 1.26.1.
AI Analysis
Technical Summary
The node-re2 library, which provides RE2 regular expression bindings for Node.js, has a vulnerability (CWE-125) in versions before 1.26.1. When a Buffer containing a truncated multi-byte UTF-8 sequence is passed, the native binding attempts to decode the incomplete code point and reads past the end of the allocated buffer. This out-of-bounds read can lead to disclosure of adjacent memory. The vulnerability is addressed in version 1.26.1.
Potential Impact
An attacker supplying a specially crafted Buffer with an incomplete multi-byte UTF-8 sequence could cause the native binding to read memory beyond the intended buffer boundary. This may result in disclosure of adjacent memory contents, potentially leaking sensitive information. There is no indication of code execution or denial of service. The CVSS score is 5.1 (medium severity).
Mitigation Recommendations
Upgrade node-re2 to version 1.26.1 or later, where this out-of-bounds read vulnerability is fixed. No other mitigation or workaround is indicated.
CVE-2026-71498: CWE-125: Out-of-bounds Read in uhop node-re2
Description
node-re2 versions prior to 1.26.1 contain an out-of-bounds read vulnerability due to improper handling of truncated multi-byte UTF-8 sequences in Buffers. This flaw allows the native binding to read beyond the allocated buffer while decoding incomplete UTF-8 code points, potentially disclosing adjacent memory contents. The issue is fixed in version 1.26.1.
CVSS v3.1
Score 5.1medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The node-re2 library, which provides RE2 regular expression bindings for Node.js, has a vulnerability (CWE-125) in versions before 1.26.1. When a Buffer containing a truncated multi-byte UTF-8 sequence is passed, the native binding attempts to decode the incomplete code point and reads past the end of the allocated buffer. This out-of-bounds read can lead to disclosure of adjacent memory. The vulnerability is addressed in version 1.26.1.
Potential Impact
An attacker supplying a specially crafted Buffer with an incomplete multi-byte UTF-8 sequence could cause the native binding to read memory beyond the intended buffer boundary. This may result in disclosure of adjacent memory contents, potentially leaking sensitive information. There is no indication of code execution or denial of service. The CVSS score is 5.1 (medium severity).
Mitigation Recommendations
Upgrade node-re2 to version 1.26.1 or later, where this out-of-bounds read vulnerability is fixed. No other mitigation or workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-06T19:56:23.726Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a750711bf8831d5395f5e1d
Added to database: 08/06/2026, 22:13:37 UTC
Last enriched: 08/06/2026, 22:27:37 UTC
Last updated: 08/07/2026, 03:14:08 UTC
Views: 7
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