CVEvulnerability

CVE-2026-44291

8.1 HIGH 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])
8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-94

Description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs used plain objects with inherited prototypes for internal type lookup tables used by generated encode and decode functions. If Object.prototype had already been polluted, those lookup tables could resolve attacker-controlled inherited properties as valid protobuf type information. This could cause attacker-controlled strings to be emitted into generated JavaScript code. 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-94 Improper Control of Generation of Code weakness

References