lychee link checking action checks links in Markdown, HTML, and text files using lychee. Prior to version 2.0.2, there is a potential attack of arbitrary code injection vulnerability in lychee-setup of the composite action at action.yml. This issue has been patched in version 2.0.2.

Metrics

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

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 0.00022.

Exploitation poc

Automatable yes

Technical Impact total

Affected Vendors & Products

No data.

No data.

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Advisories
Source ID Title
EUVD EUVD EUVD-2024-54925 lychee link checking action affected by arbitrary code injection in composite action
Github GHSA Github GHSA GHSA-65rg-554r-9j5x lychee link checking action affected by arbitrary code injection in composite action
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/lycheeverse/lychee-action/commit/7cd0af4c74a61395d455af97419279d86aafaede cve-icon cve-icon
https://github.com/lycheeverse/lychee-action/security/advisories/GHSA-65rg-554r-9j5x cve-icon cve-icon
History

Thu, 28 Aug 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 28 Aug 2025 15:00:00 +0000

Type Values Removed Values Added
Description lychee link checking action checks links in Markdown, HTML, and text files using lychee. Prior to version 2.0.2, there is a potential attack of arbitrary code injection vulnerability in lychee-setup of the composite action at action.yml. This issue has been patched in version 2.0.2.
Title lychee-action vulnerable to arbitrary code injection in composite action
Weaknesses CWE-94
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-08-28T20:11:46.131Z

Reserved: 2024-10-09T22:06:46.170Z

Link: CVE-2024-48908

cve-icon Vulnrichment

Updated: 2025-08-28T20:11:38.799Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-28T15:15:42.390

Modified: 2025-08-29T16:24:29.730

Link: CVE-2024-48908

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.