Fedify is a TypeScript library for building federated server apps powered by ActivityPub. From version 1.2.0 through the affected 1.9, 1.10, 2.0, 2.1, 2.2, and 2.3 maintenance lines, getNodeInfo() follows an attacker-controlled links[].href value from /.well-known/nodeinfo without scheme, redirect, or private-address validation, allowing requests to loopback, link-local, cloud metadata, and private-network services and returning their response bodies. This issue is fixed in versions 1.9.13, 1.10.12, 2.0.22, 2.1.18, 2.2.7, and 2.3.2.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00249.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
fedify-dev fedify affected
Version Status Constraints
>= 1.2.0, < 1.9.13 affected —
>= 1.10.0, < 1.10.12 affected —
>= 2.0.0, < 2.0.22 affected —
>= 2.1.0, < 2.1.18 affected —
>= 2.2.0, < 2.2.7 affected —
>= 2.3.0, < 2.3.2 affected —

No data.

No data.

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Vendors Products
Fedify Subscribe
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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/fedify-dev/fedify/releases/tag/2.3.2 cve-icon
https://github.com/fedify-dev/fedify/security/advisories/GHSA-hqph-j65v-8cq5 cve-icon
History

Fri, 07 Aug 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Fedify
Fedify fedify
Vendors & Products Fedify
Fedify fedify

Thu, 06 Aug 2026 22:15:00 +0000

Type Values Removed Values Added
Description Fedify is a TypeScript library for building federated server apps powered by ActivityPub. From version 1.2.0 through the affected 1.9, 1.10, 2.0, 2.1, 2.2, and 2.3 maintenance lines, getNodeInfo() follows an attacker-controlled links[].href value from /.well-known/nodeinfo without scheme, redirect, or private-address validation, allowing requests to loopback, link-local, cloud metadata, and private-network services and returning their response bodies. This issue is fixed in versions 1.9.13, 1.10.12, 2.0.22, 2.1.18, 2.2.7, and 2.3.2.
Title Fedify: Server-Side Request Forgery in getNodeInfo() Allows Access to Internal Network Resources
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-06T21:04:23.341Z

Reserved: 2026-07-14T21:10:50.032Z

Link: CVE-2026-62857

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-07T09:00:05Z

Weaknesses