CVE-2026-46388 (CVSS 4.4)

Description

osquery is a SQL powered operating system instrumentation, monitoring, and analytics framework. Prior to 5.23.1, an unprivileged attacker can read the contents of an osquery file carve until the carve completes and the temporary files are deleted because in-progress carve directories are not created with private permissions. If the carve targets a directory that the attacker controls, arbitrary file reads are possible, such as sensitive local files. This issue is fixed in version 5.23.1.

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CVSS v3.1 Score

4.4

MEDIUM

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

EPSS — Exploit Prediction

0.0009

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-279 CWE-279

CWE-378 CWE-378

CWE-379 CWE-379

References

Other References

https://github.com/osquery/osquery/commit/6dabe9ded33bf9c6fc0f3e37ec364a1cbbd25d68 https://github.com/osquery/osquery/pull/8961 https://github.com/osquery/osquery/releases/tag/5.23.1 https://github.com/osquery/osquery/security/advisories/GHSA-fg78-9q98-62hh

Frequently Asked Questions

What is CVE-2026-46388? +

osquery is a SQL powered operating system instrumentation, monitoring, and analytics framework. Prior to 5.23.1, an unprivileged attacker can read the contents of an osquery file carve until the carve completes and the temporary files are deleted because in-progress carve directories are not created with private permissions. If the carve targets a directory that the attacker controls, arbitrary file reads are possible, such as sensitive local files. This issue is fixed in version 5.23.1. It has a CVSS v3.1 base score of 4.4 (MEDIUM).

How severe is CVE-2026-46388? +

CVE-2026-46388 has a CVSS v3.1 score of 4.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0009, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-46388? +

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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CVE-2026-46388