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Vulnerability details: VCID-v7pd-aym8-ykdg
Vulnerability ID VCID-v7pd-aym8-ykdg
Aliases CVE-2025-68475
GHSA-rchf-xwx2-hm93
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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1333 Inefficient Regular Expression Complexity
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.0044 https://api.first.org/data/v1/epss?cve=CVE-2025-68475
epss 0.0044 https://api.first.org/data/v1/epss?cve=CVE-2025-68475
epss 0.0044 https://api.first.org/data/v1/epss?cve=CVE-2025-68475
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-rchf-xwx2-hm93
cvssv3.1 7.5 https://github.com/fedify-dev/fedify
generic_textual HIGH https://github.com/fedify-dev/fedify
cvssv3.1 7.5 https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779
generic_textual HIGH https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779
ssvc Track https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779
cvssv3.1 7.5 https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a
generic_textual HIGH https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a
ssvc Track https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a
cvssv3.1 7.5 https://github.com/fedify-dev/fedify/releases/tag/1.6.13
generic_textual HIGH https://github.com/fedify-dev/fedify/releases/tag/1.6.13
ssvc Track https://github.com/fedify-dev/fedify/releases/tag/1.6.13
cvssv3.1 7.5 https://github.com/fedify-dev/fedify/releases/tag/1.7.14
generic_textual HIGH https://github.com/fedify-dev/fedify/releases/tag/1.7.14
ssvc Track https://github.com/fedify-dev/fedify/releases/tag/1.7.14
cvssv3.1 7.5 https://github.com/fedify-dev/fedify/releases/tag/1.8.15
generic_textual HIGH https://github.com/fedify-dev/fedify/releases/tag/1.8.15
ssvc Track https://github.com/fedify-dev/fedify/releases/tag/1.8.15
cvssv3.1 7.5 https://github.com/fedify-dev/fedify/releases/tag/1.9.2
generic_textual HIGH https://github.com/fedify-dev/fedify/releases/tag/1.9.2
ssvc Track https://github.com/fedify-dev/fedify/releases/tag/1.9.2
cvssv3.1 7.5 https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93
cvssv3.1_qr HIGH https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93
generic_textual HIGH https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93
ssvc Track https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2025-68475
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2025-68475
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2025-68475
https://github.com/fedify-dev/fedify
1.6.13 https://github.com/fedify-dev/fedify/releases/tag/1.6.13
1.7.14 https://github.com/fedify-dev/fedify/releases/tag/1.7.14
1.8.15 https://github.com/fedify-dev/fedify/releases/tag/1.8.15
1.9.2 https://github.com/fedify-dev/fedify/releases/tag/1.9.2
2bdcb24d7d6d5886e0214ed504b63a6dc5488779 https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779
bf2f0783634efed2663d1b187dc55461ee1f987a https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a
CVE-2025-68475 https://nvd.nist.gov/vuln/detail/CVE-2025-68475
GHSA-rchf-xwx2-hm93 https://github.com/advisories/GHSA-rchf-xwx2-hm93
GHSA-rchf-xwx2-hm93 https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/fedify-dev/fedify
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-22T21:54:29Z/ Found at https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-22T21:54:29Z/ Found at https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/fedify-dev/fedify/releases/tag/1.6.13
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

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Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-22T21:54:29Z/ Found at https://github.com/fedify-dev/fedify/releases/tag/1.6.13
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/fedify-dev/fedify/releases/tag/1.7.14
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-22T21:54:29Z/ Found at https://github.com/fedify-dev/fedify/releases/tag/1.7.14
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/fedify-dev/fedify/releases/tag/1.8.15
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

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unchanged

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Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-22T21:54:29Z/ Found at https://github.com/fedify-dev/fedify/releases/tag/1.8.15
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/fedify-dev/fedify/releases/tag/1.9.2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

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unchanged

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Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-22T21:54:29Z/ Found at https://github.com/fedify-dev/fedify/releases/tag/1.9.2
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

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Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-12-22T21:54:29Z/ Found at https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2025-68475
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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unchanged

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Exploit Prediction Scoring System (EPSS)
Percentile 0.6362
EPSS Score 0.0044
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:58:57.087294+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2025/68xxx/CVE-2025-68475.json 38.6.0