CVE-2026-16763
localstack serverless-localstack Configuration index.js os command injection
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
A vulnerability was identified in localstack serverless-localstack up to 1.4.0. The affected element is an unknown function of the file src/index.js of the component Configuration Handler. The manipulation of the argument custom.localstack.docker.compose_file leads to os command injection. An attack has to be approached locally. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
| CWE | CWE-78 CWE-77 |
| Vendor | localstack |
| Product | serverless-localstack |
| Published | Jul 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
localstack / serverless-localstack
1.0 1.1 1.2 1.3 1.4.0
References
vuldb.com: https://vuldb.com/vuln/382620 vuldb.com: https://vuldb.com/vuln/382620/cti vuldb.com: https://vuldb.com/cve/CVE-2026-16763 vuldb.com: https://vuldb.com/submit/861028 github.com: https://github.com/localstack/serverless-localstack/issues/303 github.com: https://github.com/localstack/serverless-localstack/
Credits
🔍 wjm2 (VulDB User) VulDB CNA Team