CVE-2026-44291
| Summary |
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.
|
| Publication Date |
May 14, 2026, 1:16 a.m. |
| Registration Date |
May 15, 2026, 4:21 a.m. |
| Last Update |
May 14, 2026, 9:22 p.m. |
|
CVSS3.1 : HIGH
|
| スコア |
8.1
|
| Vector |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
高 |
| 攻撃に必要な特権レベル(PR) |
不要 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更なし |
| 機密性への影響(C) |
高 |
| 完全性への影響(I) |
高 |
| 可用性への影響(A) |
高 |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:protobufjs_project:protobufjs:*:*:*:*:*:node.js:*:* |
|
|
|
7.5.6 |
| cpe:2.3:a:protobufjs_project:protobufjs:*:*:*:*:*:node.js:*:* |
8.0.0 |
|
|
8.0.2 |
Related information, measures and tools
Common Vulnerabilities List