CVE-2026-100744: Auth Bypass (CVSS 7.3)

Description

A flaw has been found in coollabsio Coolify up to 4.1.2. The affected element is an unknown function of the file app/Http/Middleware/CanUpdateResource.php of the component Route-Level Middleware. Executing a manipulation can lead to missing authorization. The attack may be launched remotely. The exploit has been published and may be used. Upgrading to version 4.2.0 is sufficient to fix this issue. This patch is called 39ae16de4248075de8c08f3259114e064b20d52d. It is advisable to upgrade the affected component.

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CVSS v3.1 Score

7.3

HIGH

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

EPSS — Exploit Prediction

0.0045

Probability of exploitation

0.37%

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-862 Missing Authorization

CWE-863 Incorrect Authorization

References

Other References

https://github.com/coollabsio/coolify/ https://github.com/coollabsio/coolify/commit/39ae16de4248075de8c08f3259114e064b20d52d https://github.com/coollabsio/coolify/pull/10829 https://github.com/coollabsio/coolify/releases/tag/v4.2.0 https://github.com/lakshayyverma/CVE-Discovery/blob/main/coolify-missing-authorization-route-middleware.7z https://vuldb.com/cve/CVE-2026-100744 https://vuldb.com/submit/897358 https://vuldb.com/vuln/410615 https://vuldb.com/vuln/410615/cti

Frequently Asked Questions

What is CVE-2026-100744? +

A flaw has been found in coollabsio Coolify up to 4.1.2. The affected element is an unknown function of the file app/Http/Middleware/CanUpdateResource.php of the component Route-Level Middleware. Executing a manipulation can lead to missing authorization. The attack may be launched remotely. The exploit has been published and may be used. Upgrading to version 4.2.0 is sufficient to fix this issue. This patch is called 39ae16de4248075de8c08f3259114e064b20d52d. It is advisable to upgrade the affected component. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2026-100744? +

CVE-2026-100744 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0045, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-100744? +

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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