CVE-2026-42462EPSS p15.9%
CVE-2026-42462CVE-2026-42462
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.
Scoring
| CVSS | 7.0 () |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L |
| EPSS | 0.25% probability of exploitation · percentile 15.9% · 2026-06-19T12:03:05Z |
| Last modified | 2026-06-11 |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.