๐Ÿ›ก๏ธ CVE-2026-42462
๐ŸŸ  CVSS 8.0 โ€” High โœ… No Known Exploit CWE-1289 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
CWE CWE-1289
Public Exploit โœ… No
Source NVD
Published 2026-05-26
Updated 2026-06-12
Modified 2026-06-11
Fix URL N/A

Affected Packages

Software From version Fixed in
@fedify/fedify โ€” โ€”
unknown โ€” โ€”

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