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High severity · published Aug 27, 2026
CVE-2026-81838
Zip Slip Arbitrary File Write in AWS diagram-as-code (awsdac)
7.1
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
diagram-as-code · aws
0.10 through 0.23 · source: vendor, NVD
Affected product
DI
diagram-as-code
aws
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-81838
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-81838
Patch
https://aws.amazon.com/security/security-bulletins/2026-090-aws/
Patch
https://github.com/awslabs/diagram-as-code/releases/tag/v0.24