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Malicious code in codex-setup (npm)

GHSA-h8cg-xwfv-9x77

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm codex-setup

    Affected
    every version
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
not scored
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

--- _-= Per source details. Do not edit below this line.=-_

Source: amazon-inspector (1dc5704d4c9ccb90b3211f8a23c64d5e2ce818dd6bb1c084876e6a52105722e2) Package codex-setup@1.0.1 was examined and no behavior indicative of a supply-chain attack was observed. No lifecycle scripts fetching or executing remote content, no reads of installer secrets (such as ~/.aws, ~/.ssh, ~/.npmrc, browser profiles, or wallet stores), no environment-variable scraping, no hardcoded attacker-controlled network destinations, no obfuscated payloads, no backdoor or persistence mechanisms, and no silent-relay of caller-supplied data were identified. The package appears benign on the basis of the scanned contents.

Source: ghsa-malware (07bc1e933aeccbce3ee5ffda504b2abd81e6e8c9d09866d7a8e5c6197d7873c8) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from osv record MAL-2026-18060

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: GHSA-h8cg-xwfv-9x77

Advisory: Malicious code in codex-setup (npm)
IDs: GHSA-h8cg-xwfv-9x77
Record: https://patchnext.com/advisories/mal-2026-18060 (revision 1, source checked 30 Oct 2026, 06:05 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm codex-setup: affected every version

## Suggested inspection (read-only)
- `npm ls codex-setup --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on codex-setup.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/MAL-2026-18060 (OSV record MAL-2026-18060 lists affected ranges: npm codex-setup >=0)

Commands are suggestions: review each one before running it.

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