lychee-action vulnerable to arbitrary code injection in composite action
Priority HIGH 72CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00369 30th percentileScored 2026-11-08
Fix Fixed lychee-action (lycheeverse): 2.0.2lycheeverse/lychee-action (GitHub Actions): 2.0.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| lycheeverse | lychee-action | before 2.0.2 | 2.0.2 | Patch available | CNA |
| — | lycheeverse/lychee-action (GitHub Actions) | before 2.0.2 | 2.0.2 | Patch available | GHSA-65rg-554r-9j5x |
- lychee-action Vendorlycheeverse Affected before 2.0.2 Fixed in 2.0.2 Patch available CNA
- lycheeverse/lychee-action (GitHub Actions) Vendor— Affected before 2.0.2 Fixed in 2.0.2 Patch available GHSA-65rg-554r-9j5x
Remediation
- Fix · CNA lychee-action (lycheeverse) Fixed in 2.0.2
- Fix · GHSA-65rg-554r-9j5x lycheeverse/lychee-action (GitHub Actions) Fixed in 2.0.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-48908
- 2026-10-03 Alias added: GHSA-65rg-554r-9j5x
References
Sources
- CVE-2024-48908 · CVE Program
- CVE-2024-48908 · NVD
- FIRST EPSS
- GHSA-65rg-554r-9j5x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences