CVE-2026-59960: argos-javascript · OS Command Injection
Affects argos-javascriptSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 6.2.1 soon.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.2.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 14 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade argos-javascript to 6.2.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| argos-ciargos-javascript | Affected
| Fixed in
|
AI-suggested
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.
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.
References
- github.com/argos-ci/argos-javascript/security/advisories/GHSA-4x45-gxvp-6283 (opens in a new tab)
- github.com/argos-ci/argos-javascript/pull/319 (opens in a new tab)
- github.com/argos-ci/argos-javascript/commit/8355f3af3be3f4fe361d58a688d21535cf672717 (opens in a new tab)
- github.com/argos-ci/argos-javascript/releases/tag/@argos-ci/core@6.2.1 (opens in a new tab)