CVE-2026-59960: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in argos-ci argos-javascript
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.
AI Analysis
Technical Summary
Argos JavaScript SDK versions before 6.2.1 improperly neutralize special shell characters in CI branch or ref values sourced from GITHUB_HEAD_REF or ARGOS_BRANCH environment variables. These values flow through config.branch and getMergeBaseCommitSha() into gitFetch() and gitMergeBase() functions, which interpolate them into execSync() commands executed by /bin/sh -c. This leads to OS command injection allowing arbitrary commands to run with the CI runner's Argos upload process privileges. The flaw is resolved in Argos core package version 6.2.1.
Potential Impact
Successful exploitation enables attackers to execute arbitrary shell commands on the CI runner with the privileges of the Argos upload process. This can lead to exposure of CI secrets, modification of build artifacts, and full compromise of the CI runner environment.
Mitigation Recommendations
Upgrade to Argos core package version 6.2.1 or later, where this OS command injection vulnerability is fixed. No other mitigations are indicated by the vendor advisory.
CVE-2026-59960: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in argos-ci argos-javascript
Description
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.
CVSS v3.1
Score 7.5high
Affected software
argos-ci
argos-javascript
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Argos JavaScript SDK versions before 6.2.1 improperly neutralize special shell characters in CI branch or ref values sourced from GITHUB_HEAD_REF or ARGOS_BRANCH environment variables. These values flow through config.branch and getMergeBaseCommitSha() into gitFetch() and gitMergeBase() functions, which interpolate them into execSync() commands executed by /bin/sh -c. This leads to OS command injection allowing arbitrary commands to run with the CI runner's Argos upload process privileges. The flaw is resolved in Argos core package version 6.2.1.
Potential Impact
Successful exploitation enables attackers to execute arbitrary shell commands on the CI runner with the privileges of the Argos upload process. This can lead to exposure of CI secrets, modification of build artifacts, and full compromise of the CI runner environment.
Mitigation Recommendations
Upgrade to Argos core package version 6.2.1 or later, where this OS command injection vulnerability is fixed. No other mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-07T18:49:15.608Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa8289355bf5e2cf557f785
Added to database: 09/14/2026, 17:02:11 UTC
Last enriched: 09/14/2026, 17:16:36 UTC
Last updated: 09/15/2026, 03:02:56 UTC
Views: 11
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