melange allows users to build apk packages using declarative pipelines. From version 0.3.0 to before 0.40.3, an attacker who can provide build input values, but not modify pipeline definitions, could execute arbitrary shell commands if the pipeline uses ${{vars.*}} or ${{inputs.*}} substitutions in working-directory. The field is embedded into shell scripts without proper quote escaping. This issue has been patched in version 0.40.3.
CVE-2026-24844
This high-severity CVE scores 7.9 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 98% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.9
- EG Score
- 7.9(medium)
- EPSS
- 7.3%
- KEV
- Not listed
Published
February 4, 2026
Last Modified
February 18, 2026
References (2)
- security-advisories@githubhttps://github.com/chainguard-dev/melange/commit/e51ca30cfb63178f5a86997d23d3fff0359fa6c8
- security-advisories@githubhttps://github.com/chainguard-dev/melange/security/advisories/GHSA-vqqr-rmpc-hhg2
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| chainguard.dev/melange | — | 0.40.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 49× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-29 14:37 UTCEG score recompute
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Related CVEs(same CWE)
Same CWE
10 shownCWE-78
Frequently asked(5)
What is CVE-2026-24844?
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Dependency Blast Radius
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