# CVE-2026-81838: Zip Slip Arbitrary File Write in AWS diagram-as-code (awsdac)

> CVE-2026-81838: Zip Slip Arbitrary File Write in AWS diagram-as-code (awsdac). CVSS 7.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-81838
Last updated: 2026-09-04T13:51:20Z

- Published: 2026-08-27 20:03 UTC · Updated: 2026-09-04 13:51 UTC · Assigner: AMZN
- CVSS: 7.1 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- EPSS: 0.20%, 10th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-23

## Description

A relative path traversal issue in the zip extraction functionality in AWS diagram-as-code (awsdac) in versions 0.10 through 0.23 can allow a third party to write arbitrary files to the local filesystem via crafted zip entry names containing path traversal sequences. This could allow the third party to perform inappropriate actions in the diagram bundle. To remediate this issue, users should upgrade to the version 0.24 or later.

## Affected vendors and products

- aws: diagram-as-code

## Tracked companies

- [Amazon Web Services](https://rewindex.com/company/aws.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-81838)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-81838)
- [https://aws.amazon.com/security/security-bulletins/2026-090-aws/](https://aws.amazon.com/security/security-bulletins/2026-090-aws/)
- [https://github.com/awslabs/diagram-as-code/releases/tag/v0.24](https://github.com/awslabs/diagram-as-code/releases/tag/v0.24)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-81838 · Markdown: https://rewindex.com/cve/CVE-2026-81838.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-81838 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:31.679Z