CVE-2026-18593 (CVSS 5.6)

Description

A weakness has been identified in vxcontrol PentAGI up to 2.1.0. This affects an unknown part of the file backend/pkg/templates/prompts/pentester.tmpl of the component Tool Management Protocol Handler. Executing a manipulation can lead to sandbox issue. It is possible to launch the attack remotely. The attack requires a high level of complexity. It is indicated that the exploitability is difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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CVSS v3.1 Score

5.6

MEDIUM

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

EPSS — Exploit Prediction

0.0027

Probability of exploitation

0.18%

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-264 CWE-264

CWE-265 CWE-265

References

Other References

https://github.com/ez-lbz/pentagi-vul-report https://vuldb.com/cve/CVE-2026-18593 https://vuldb.com/submit/851348 https://vuldb.com/vuln/385421 https://vuldb.com/vuln/385421/cti

Frequently Asked Questions

What is CVE-2026-18593? +

A weakness has been identified in vxcontrol PentAGI up to 2.1.0. This affects an unknown part of the file backend/pkg/templates/prompts/pentester.tmpl of the component Tool Management Protocol Handler. Executing a manipulation can lead to sandbox issue. It is possible to launch the attack remotely. The attack requires a high level of complexity. It is indicated that the exploitability is difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way. It has a CVSS v3.1 base score of 5.6 (MEDIUM).

How severe is CVE-2026-18593? +

CVE-2026-18593 has a CVSS v3.1 score of 5.6 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0027, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-18593? +

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-2026-18593