What is CVE-2026-81838?

CVE-2026-81838 is a high-severity vulnerability in AWS Diagram-As-Code, classified under Relative Path Traversal. CVSS score: 7.1/10. Published 2026-08-27.

How severe is CVE-2026-81838?

High severity. CVSS v3 base score is 7.1 out of 10.

Path Traversal in AWS Diagram-As-Code

CVE-2026-81838

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.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

Affected products

Aws Diagram-as-code

Weakness classification (CWE)

CWE-23 — Relative Path Traversal

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (release-notes, patch)

Frequently asked questions

What is CVE-2026-81838?: CVE-2026-81838 is a high-severity vulnerability in AWS Diagram-As-Code, classified under Relative Path Traversal. CVSS score: 7.1/10. Published 2026-08-27.
How severe is CVE-2026-81838?: High severity. CVSS v3 base score is 7.1 out of 10.