CVE-2026-15792Network attack vector

Daemon crash via malformed frontend request

Published Jul 21, 2026 · Updated Jul 21, 2026

Improper input validation in Moby BuildKit before 0.31.2 allows remote authenticated users to crash the buildkitd daemon. Moby has not disclosed which request parameters bypass validation or which daemon operation panics while processing them. Access as a BuildKit client or control of a selected frontend is required, and exploitation interrupts the daemon without reported data disclosure or modification.

CVSS severity6.0
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Moby BuildKit before 0.31.2 allows remote authenticated users to crash the buildkitd daemon. Moby has not disclosed which request parameters bypass validation or which daemon operation panics while processing them. Access as a BuildKit client or control of a selected frontend is required, and exploitation interrupts the daemon without reported data disclosure or modification.

The record

CVE
CVE-2026-15792
Published
Jul 21, 2026
Updated
Jul 21, 2026
Vendor
Moby Project
Product
BuildKit
Classifications
CWE-20, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 21, 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.

  1. Affected versionversion=0 <0.31.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moby Project · BuildKitversion=0 <0.31.2

Published CVSS scores

6.0Docker Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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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