Container command execution via cross-origin WebSocket hijacking
Published May 26, 2026 · Updated May 26, 2026
Origin validation error in Amir Raminfar Dozzle before 10.5.2 allows remote attackers to execute commands through hijacked WebSockets. The /exec and /attach WebSocket upgrader accepts every Origin value, so a same-site page can cause the browser to send its Lax JWT cookie. Authentication, an authenticated victim, a same-site attacker origin, and the non-default shell feature are required; exploitation grants an interactive shell in every container available to that victim.
Summary
What happened
Origin validation error in Amir Raminfar Dozzle before 10.5.2 allows remote attackers to execute commands through hijacked WebSockets. The /exec and /attach WebSocket upgrader accepts every Origin value, so a same-site page can cause the browser to send its Lax JWT cookie. Authentication, an authenticated victim, a same-site attacker origin, and the non-default shell feature are required; exploitation grants an interactive shell in every container available to that victim.
The record
- CVE
- CVE-2026-44985
- Published
- May 26, 2026
- Updated
- May 26, 2026
- Vendor
- Amir Raminfar
- Product
- Dozzle
- Classifications
- CWE-346, T1059
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 26, 2026CVE publishedPublication date reported by the CVE source.
- May 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 10.5.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- GitHub advisory cross-site WebSocket hijacking proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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