CVE-2026-42462
- Source
- https://cve.org/CVERecord?id=CVE-2026-42462
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42462.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-42462
- Aliases
- Published
- 2026-06-10T20:22:35.383Z
- Modified
- 2026-07-08T08:12:34.796591954Z
- Severity
-
- 7.0 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L CVSS Calculator
- Summary
- Fedify has an LD-Signature Bypass via JSON-LD Named-Graph Restructuring
- Details
-
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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42462.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-1289", "CWE-180", "CWE-347", "CWE-436" ] }- References
Affected packages
Git / github.com/fedify-dev/fedify
Affected ranges
- Type
- GIT
- Repo
- https://github.com/fedify-dev/fedify
- Events
-
IntroducedIntroducedIntroducedIntroducedIntroduced0 Unknown introduced commit / All previous commits are affectedFixedFixedFixedFixedFixed
- Database specific
{ "source": [ "AFFECTED_FIELD", "REFERENCES" ], "extracted_events": [ { "introduced": "2.2.0" }, { "fixed": "2.2.3" }, { "introduced": "2.1.0" }, { "fixed": "2.1.14" }, { "introduced": "2.0.0" }, { "fixed": "2.0.18" }, { "introduced": "1.10.0" }, { "fixed": "1.10.10" }, { "introduced": "0" }, { "fixed": "1.9.11" } ] }
Affected versions
0.*
0.1.0
0.10.0
0.11.0
0.12.0
0.13.0
0.14.0
0.15.0
0.2.0
0.3.0
0.4.0
0.5.0
0.6.0
0.7.0
0.8.0
0.9.0
1.*
1.0.0
1.1.0
1.10.0
1.10.1
1.10.2
1.10.3
1.10.4
1.10.5
1.10.6
1.10.7
1.10.8
1.10.9
1.2.0
1.3.0
1.4.0
1.5.0
1.6.1
1.7.0
1.8.1
1.9.0
1.9.1
1.9.10
1.9.2
1.9.3
1.9.4
1.9.5
1.9.6
1.9.7
1.9.8
1.9.9
2.*
2.0.0
2.0.1
2.0.10
2.0.11
2.0.12
2.0.13
2.0.14
2.0.15
2.0.16
2.0.17
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.9
2.1.0
2.1.1
2.1.10
2.1.11
2.1.12
2.1.13
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.1.9
2.2.0
2.2.1
2.2.2