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4 vulnerabilities found for fedify by fedify

CVE-2026-34148 (GCVE-0-2026-34148)

Vulnerability from nvd – Published: 2026-04-06 15:06 – Updated: 2026-04-07 14:25
VLAI
Title
Fedify affected by resource exhaustion caused by unbounded redirect following during remote key/document resolution
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to 1.9.6, 1.10.5, 2.0.8, and 2.1.1, @fedify/fedify follows HTTP redirects recursively in its remote document loader and authenticated document loader without enforcing a maximum redirect count or visited-URL loop detection. An attacker who controls a remote ActivityPub key or actor URL can force a server using Fedify to make repeated outbound requests from a single inbound request, leading to resource consumption and denial of service. This vulnerability is fixed in 1.9.6, 1.10.5, 2.0.8, and 2.1.1.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
@fedify fedify Affected: < 1.9.6
Affected: >= 1.10.0, < 1.10.5
Affected: >= 2.0.0, < 2.0.8
Affected: >= 2.1.0, < 2.1.1
Create a notification for this product.
@fedify vocab-runtime Affected: < 2.0.8
Affected: >= 2.1.0, < 2.1.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-68475 (GCVE-0-2025-68475)

Vulnerability from nvd – Published: 2025-12-22 21:31 – Updated: 2025-12-22 21:54
VLAI
Title
Fedify has ReDoS Vulnerability in HTML Parsing Regex
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2, a Regular Expression Denial of Service (ReDoS) vulnerability exists in Fedify's document loader. The HTML parsing regex at packages/fedify/src/runtime/docloader.ts:259 contains nested quantifiers that cause catastrophic backtracking when processing maliciously crafted HTML responses. This issue has been patched in versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version
fedify-dev fedify Affected: < 1.6.13
Affected: >= 1.7.0, < 1.7.14
Affected: >= 1.8.0, < 1.8.15
Affected: >= 1.9.0, < 1.9.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34148 (GCVE-0-2026-34148)

Vulnerability from cvelistv5 – Published: 2026-04-06 15:06 – Updated: 2026-04-07 14:25
VLAI
Title
Fedify affected by resource exhaustion caused by unbounded redirect following during remote key/document resolution
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to 1.9.6, 1.10.5, 2.0.8, and 2.1.1, @fedify/fedify follows HTTP redirects recursively in its remote document loader and authenticated document loader without enforcing a maximum redirect count or visited-URL loop detection. An attacker who controls a remote ActivityPub key or actor URL can force a server using Fedify to make repeated outbound requests from a single inbound request, leading to resource consumption and denial of service. This vulnerability is fixed in 1.9.6, 1.10.5, 2.0.8, and 2.1.1.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
@fedify fedify Affected: < 1.9.6
Affected: >= 1.10.0, < 1.10.5
Affected: >= 2.0.0, < 2.0.8
Affected: >= 2.1.0, < 2.1.1
Create a notification for this product.
@fedify vocab-runtime Affected: < 2.0.8
Affected: >= 2.1.0, < 2.1.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-68475 (GCVE-0-2025-68475)

Vulnerability from cvelistv5 – Published: 2025-12-22 21:31 – Updated: 2025-12-22 21:54
VLAI
Title
Fedify has ReDoS Vulnerability in HTML Parsing Regex
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2, a Regular Expression Denial of Service (ReDoS) vulnerability exists in Fedify's document loader. The HTML parsing regex at packages/fedify/src/runtime/docloader.ts:259 contains nested quantifiers that cause catastrophic backtracking when processing maliciously crafted HTML responses. This issue has been patched in versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
Vendor Product Version
fedify-dev fedify Affected: < 1.6.13
Affected: >= 1.7.0, < 1.7.14
Affected: >= 1.8.0, < 1.8.15
Affected: >= 1.9.0, < 1.9.2
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