CVEvulnerability

CVE-2026-44288

5.3 MEDIUM Published 2026-05-13 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-05-13
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-176

Description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs includes a minimal UTF-8 decoder that accepted overlong UTF-8 byte sequences and decoded them to their canonical characters instead of replacing them. An attacker who can provide protobuf binary data decoded through the affected UTF-8 path may be able to bypass application-level checks that inspect raw bytes before protobuf string decoding. For example, bytes that do not contain certain ASCII characters could decode to strings containing those characters. This vulnerability is fixed in 7.5.6 and 8.0.2.

Affected configurations

• protobufjs project protobufjs (< 7.5.6) • protobufjs project protobufjs (>= 8.0.0 < 8.0.2)

Related

Weakness · CWE (1)

  • CWE-176 Improper Handling of Unicode Encoding weakness

References