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HIGH

CVE-2026-86538

CVSS v3

7.5

HIGH

EPSS Score

1.0 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

knowns versions before 0.30.0 contain a path traversal vulnerability in the POST /api/templates/preview endpoint that allows unauthenticated attackers to read arbitrary files. Attackers can supply directory traversal sequences in the templateFile parameter to bypass path restrictions and read sensitive files like credentials and configuration through the JSON response.

Technical details

Published
2026-09-07
Last Modified
2026-09-08

Frequently asked questions

What is CVE-2026-86538?

knowns versions before 0.30.0 contain a path traversal vulnerability in the POST /api/templates/preview endpoint that allows unauthenticated attackers to read arbitrary files. Attackers can supply directory traversal sequences in the templateFile parameter to bypass path restrictions and read sensitive files like credentials and configuration through the JSON response.

Is CVE-2026-86538 actively exploited?

Active exploitation of CVE-2026-86538 has not been confirmed. Its EPSS score was 1.0% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-86538?

CVE-2026-86538 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2026-86538 affecting your environment?

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