CVE-2026-53988

CRITICAL 10.0

Dockhand < 1.0.40 Unauthenticated Webhook Trigger via Git Webhook Endpoints

CVSS Score

10.0

EPSS Score

0.0%

EPSS Percentile

0th

Dockhand before 1.0.40 contains an authentication bypass vulnerability in its git webhook endpoints that allows unauthenticated remote attackers to trigger arbitrary stack redeployments by exploiting a null webhook secret guard condition. Attackers can enumerate sequential stack IDs and send unsigned webhook requests to force git clone and docker compose operations, enabling denial of service or, when combined with write access to the tracked git branch, container escape and full host compromise via attacker-controlled docker-compose.yml with privileged bind mounts.

CWE	CWE-306
Vendor	finsys
Product	dockhand
Published	Sep 29, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Finsys / dockhand

0 < 1.0.40

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/Finsys/dockhand/releases/tag/v1.0.40 vulncheck.com: https://www.vulncheck.com/advisories/dockhand-unauthenticated-webhook-trigger-via-git-webhook-endpoints

Credits

Katriel Moses VulnCheck