CVE-2026-107296

Published 8 October 2026 · tracked since 9 October 2026

Description

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer while computing the value. Applications that retain or reuse encoded input for integrity checks, logging

References

• NVD — National Vulnerability Database
• CVE.org record (MITRE)
• CISA Known Exploited Vulnerabilities catalog

Latest tracked vulnerabilities

• CVE-2026-107294 MEDIUM 6.5
• CVE-2026-107295 HIGH 7.6
• CVE-2026-107297 MEDIUM 5.9
• CVE-2026-107290 MEDIUM 6.5
• CVE-2026-107291
• CVE-2026-107292 MEDIUM 6.4
• CVE-2026-107293
• CVE-2026-105436 HIGH 8.8
• CVE-2026-104077 HIGH 7.8
• CVE-2026-107288 LOW 3.7

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