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Vulnerability record · CVE-2018-12678 · published 22 June 2018

CVE-2018-12678: Portainer server-side request forgery (ssrf) vulnerability

Portainer · Portainer

Portainer before 1.18.0 supports unauthenticated requests to the websocket endpoint with an unvalidated id query parameter for the /websocket/exec endpoint, which allows remote attackers to bypass intended access restrictions or conduct SSRF attacks.

9.8 CVSS 3.0 Critical EPSS 2.3% · top 17.3% CWE-918 · Server-side request forgery (SSRF)
9.8CVSS 3.0 base score, v2 7.5
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Portainer before 1.18.0 supports unauthenticated requests to the websocket endpoint with an unvalidated id query parameter for the /websocket/exec endpoint, which allows remote attackers to bypass intended access restrictions or conduct SSRF attacks.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/portainer/portainer/pull/1979 Issue TrackingPatchThird Party Advisory
https://github.com/portainer/portainer/releases/tag/1.18.0 Issue TrackingThird Party Advisory
https://github.com/portainer/portainer/pull/1979 Issue TrackingPatchThird Party Advisory
https://github.com/portainer/portainer/releases/tag/1.18.0 Issue TrackingThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-12678), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.