CVE-2026-107332: Permission Flaw (CVSS 5.5)

Description

Insecure file permissions in the CodeCatalyst connection handler in AWS Toolkit for VS Code before 4.10.0 allowed local users to obtain CodeCatalyst bearer tokens via reading world-readable token cache files. To mitigate this issue, users should upgrade to version 4.10.0 or later.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0011

Probability of exploitation

0.01%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-276 Incorrect Default Permissions

CWE-459 CWE-459

References

Other References

https://aws.amazon.com/security/security-bulletins/2026-129-aws/ https://github.com/aws/aws-toolkit-vscode/releases/tag/toolkit/v4.10.0 https://github.com/aws/aws-toolkit-vscode/security/advisories/GHSA-9g5j-qgqm-857j

Frequently Asked Questions

What is CVE-2026-107332? +

Insecure file permissions in the CodeCatalyst connection handler in AWS Toolkit for VS Code before 4.10.0 allowed local users to obtain CodeCatalyst bearer tokens via reading world-readable token cache files. To mitigate this issue, users should upgrade to version 4.10.0 or later. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-107332? +

CVE-2026-107332 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0011, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-107332? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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