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TI-2026-42761 Aliases CVE-2026-59960GHSA-4x45-gxvp-6283

Argos JavaScript: CI Branch Name OS Command Injection in @argos-ci/core

Priority LOW 36CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-78.

Summary

Argos JavaScript provides official Argos SDKs for JavaScript. Prior to Argos core package version 6.2.1, attacker-controlled CI branch or ref values from GITHUB_HEAD_REF or ARGOS_BRANCH can flow through config.branch and getMergeBaseCommitSha() when hasRemoteContentAccess is false. The gitFetch() and gitMergeBase() functions in packages/core/src/ci-environment/git.ts interpolate these values into execSync() command strings executed by /bin/sh -c, so shell metacharacters in a pull-request branch name can execute arbitrary commands with the Argos upload process privileges on the CI runner. Successful exploitation can expose CI secrets, alter build artifacts, or compromise the runner. This issue is fixed in Argos core package version 6.2.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00638 50th percentileScored 2026-11-07
Fix Fixed argos-javascript (argos-ci): 6.2.1@argos-ci/core (npm): 6.2.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
argos-ciargos-javascriptbefore 6.2.16.2.1Patch availableCNA
—@argos-ci/core (npm)before 6.2.16.2.1Patch availableGHSA-4x45-gxvp-6283
  • argos-javascript Vendorargos-ci Affected before 6.2.1 Fixed in 6.2.1 Patch available CNA
  • @argos-ci/core (npm) Vendor— Affected before 6.2.1 Fixed in 6.2.1 Patch available GHSA-4x45-gxvp-6283

Remediation

  • Fix · CNA argos-javascript (argos-ci) Fixed in 6.2.1
  • Fix · GHSA-4x45-gxvp-6283 @argos-ci/core (npm) Fixed in 6.2.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59960
  2. 2026-10-03 Alias added: GHSA-4x45-gxvp-6283
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Other 5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences