CVE-2024-39687

HIGH EPSS 44.3%
Published Jul 5, 20241y ago · Modified Jun 17, 20262w ago
7.2 CVSS 3.1
High
Find Similar
Published Jul 5, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards. At present, when Fedify needs to retrieve an object or activity from a remote activitypub server, it makes a HTTP request to the `@id` or other resources present within the activity it has received from the web. This activity could reference an `@id` that points to an internal IP address, allowing an attacker to send request to resources internal to the fedify server's network. This applies to not just resolution of documents containing activities or objects, but also to media URLs as well. Specifically this is a Server Side Request Forgery attack. Users should upgrade to Fedify version 0.9.2, 0.10.1, or 0.11.1 to receive a patch for this issue.

CVSS Details

Base Score
7.2
Exploitability
3.9
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality Low
Integrity None
Availability Low

Threat Intelligence

EPSS Exploit Probability
44.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-918 Server-Side Request Forgery (SSRF) Validation

References 3

  • github.com https://github.com/dahlia/fedify/commit/30f9cf4a175704a04c874f3ea88414c5f1e00b28
  • github.com https://github.com/dahlia/fedify/commit/c641e976089dd913f649889c1bfb016df04e86ba
  • github.com https://github.com/dahlia/fedify/security/advisories/GHSA-p9cg-vqcc-grcx

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.