CVE-2026-42462

Katalog CVE

CVSS 7.0 · High EPSS 0,25%

Kerentanan Incorrect Behavior Order: Validate Before Canonicalize. Skor CVSS 3.1 7.0 (High) menurut github.com.

Deskripsi (NVD)

Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3, an attacker can make use of JSON-LD features to restructure a JSON-LD document that would change how Fedify interprets it without changing its Linked Data Signature, allowing them to alter a third-party signed activity they have received. Versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3 fix the issue.

Rincian

Terbit di NVD

10 Juni 2026

Terakhir diubah

23 Juli 2026

Status NVD

Deferred

CVSS 3.1

7.0 (High), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-180: Incorrect Behavior Order: Validate Before Canonicalize
CWE-347: Improper Verification of Cryptographic Signature
CWE-436: Interpretation Conflict
CWE-1289: Improper Validation of Unsafe Equivalence in Input

EPSS (30 hari)

0,25% peluang dieksploitasi; lebih tinggi dari 14,9% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/fedify-dev/fedify/releases/tag/2.2.3
• https://github.com/fedify-dev/fedify/security/advisories/GHSA-9rfg-v8g9-9367