CVE-2024-42471

Arbitrary File Write via artifact extraction in actions/artifact

HIGH
7.5
CVSS Score
Published: September 2, 2024 at 04:13 PM UTC
Updated: June 17, 2026 at 07:49 AM UTC
3 products affected across 2 vendorsActions /artifactActions ToolkitToolkit

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Severity
HIGH7.5
Exploit prediction
EPSS 3%
SSVC
No known exploit

Description

actions/artifact is the GitHub ToolKit for developing GitHub Actions. Versions of `actions/artifact` on the 2.x branch before 2.1.2 are vulnerable to arbitrary file write when using `downloadArtifactInternal`, `downloadArtifactPublic`, or `streamExtractExternal` for extracting a specifically crafted artifact that contains path traversal filenames. Users are advised to upgrade to version 2.1.2 or higher. There are no known workarounds for this issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.0.0 ≤ v < 2.1.7
Affected range stops below 2.1.7, so it looks safe — our inference, not a vendor statement
95%
All versions
v < 2.1.2
Affected range stops below 2.1.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22

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