Skip to content

CVE-2026-29786 (HIGH): detected in Lambda Docker Images. #446

@the-lambda-watchdog

Description

@the-lambda-watchdog

CVE Details

CVE ID Severity Affected Package Installed Version Fixed Version Date Published Date of Scan
CVE-2026-29786 HIGH tar 6.2.1 7.5.10 2026-03-07T16:15:55.587Z 2026-03-08T10:18:18.777455977Z

Affected Docker Images

Image Name SHA
public.ecr.aws/lambda/nodejs:latest public.ecr.aws/lambda/nodejs@sha256:cf6459f182e22a52e2bfd10576477c3c70f05ab404d8695bc16b6480c7d37505
public.ecr.aws/lambda/nodejs:24 public.ecr.aws/lambda/nodejs@sha256:4f78a2edca6966a4ee0f056562d8510267df8f39c90df00f23d52f0b581cbeeb
public.ecr.aws/lambda/nodejs:22 public.ecr.aws/lambda/nodejs@sha256:cf6459f182e22a52e2bfd10576477c3c70f05ab404d8695bc16b6480c7d37505
public.ecr.aws/lambda/nodejs:20 public.ecr.aws/lambda/nodejs@sha256:5643651ce243fcd5b6209cd5ac348cb2e66a7a9eb8f050c470ad4d19e993c5e4

Description

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as C:../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This issue has been patched in version 7.5.10.


Remediation Steps

  • Update the affected package tar from version 6.2.1 to 7.5.10.

About this issue

  • This issue may not contain all the information about the CVE nor the images it affects.
  • This issue will not be updated with new information and the list of affected images may have changed since the creation of this issue.
  • For more, visit Lambda Watchdog.
  • This issue was created automatically by Lambda Watchdog.

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions