Out-of-bounds Read in Uhop Node-Re2
CVE-2026-71498
node-re2 provides RE2 regular expression bindings for Node.js. Prior to version 1.26.1, passing a Buffer whose final bytes form a truncated (incomplete) multi-byte UTF-8 sequence could cause the native binding to read past the end of the allocated buffer while attempting to decode the final, incomplete code point. This could result in an out-of-bounds read and potential disclosure of adjacent memory contents. This issue is fixed in version 1.26.1.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (12.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
Affected products
- Uhop Node-re2 — versions < 1.26.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-71498?
- CVE-2026-71498 is a medium-severity vulnerability in Uhop Node-Re2, classified under Out-of-bounds Read. CVSS score: 5.1/10. Published 2026-08-06.
- How severe is CVE-2026-71498?
- Medium severity. CVSS v3 base score is 5.1 out of 10.