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25 vulnerabilities found for buildkit by moby
CVE-2026-93321 (GCVE-0-2026-93321)
Vulnerability from cvelistv5
Published
2026-10-05 22:00
Modified
2026-10-06 13:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-129 - Improper Validation of Array Index
Summary
A malicious frontend can submit an LLB definition that causes buildkitd
to panic and terminate, interrupting all builds running on that daemon.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-93315 (GCVE-0-2026-93315)
Vulnerability from cvelistv5
Published
2026-10-05 21:57
Modified
2026-10-06 13:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Summary
When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail without failing the build.
References
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|---|---|---|
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CVE-2026-93326 (GCVE-0-2026-93326)
Vulnerability from cvelistv5
Published
2026-10-05 20:13
Modified
2026-10-06 13:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-180 - Incorrect Behavior Order: Validate Before Canonicalize
Summary
A build step for a Git source, crafted in a specific way, can bypass some policy validation rules. A malicious build definition can make the repository look like it is coming from a different remote URL than it really is when Git clone is happening. If policy is doing more stricter validation, for example based on commit SHA, commit data, or signatures, then all these validations still apply correctly.
References
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CVE-2026-93323 (GCVE-0-2026-93323)
Vulnerability from cvelistv5
Published
2026-10-05 17:57
Modified
2026-10-05 18:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Summary
The Dockerfile frontend loaded the Dockerfile and .dockerignore files of a build context into memory without a size limit. A build context containing an oversized file could make buildkitd allocate memory proportional to that file, potentially exhausting memory and terminating the daemon, which interrupts other builds on the same instance. Fixed by rejecting such files above 16 MiB.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-93322 (GCVE-0-2026-93322)
Vulnerability from cvelistv5
Published
2026-10-05 17:53
Modified
2026-10-05 18:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-129 - Improper Validation of Array Index
Summary
A malicious frontend can submit an LLB definition that causes buildkitd
to panic and terminate, interrupting all builds running on that daemon.
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CVE-2026-93320 (GCVE-0-2026-93320)
Vulnerability from cvelistv5
Published
2026-10-05 17:50
Modified
2026-10-05 18:52
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
Summary
BuildKit may be tricked into performing file actions with special file inodes where regular files are expected. Special files may block operations or, on rootful workers, allow unintended host device access.
References
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|---|---|---|
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CVE-2026-93319 (GCVE-0-2026-93319)
Vulnerability from cvelistv5
Published
2026-10-05 17:47
Modified
2026-10-05 19:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-567 - Unsynchronized Access to Shared Data in a Multi-threaded Context
Summary
A malicious external BuildKit frontend can send requests using the internal API that can create conditions for a data race that can cause the BuildKit daemon to panic.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-93318 (GCVE-0-2026-93318)
Vulnerability from cvelistv5
Published
2026-10-05 17:45
Modified
2026-10-05 19:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Summary
A malicious image can advertise DiffIDs from another image while containing different layer contents. In affected versions, BuildKit could use the advertised DiffIDs to derive cache and snapshot identity without validating that they matched the actual layer contents.
If a BuildKit daemon with shared or persistent cache first processes such a malicious image, a later build using the victim image may mount the attacker-controlled layer contents as the base image. This can allow code from the malicious image to run in the victim build, for example by replacing a commonly executed path such as /bin/sh. The attacker-controlled code may read build secrets mounted into the build, access other build resources, alter output artifacts, or hang the build.
The issue affects both regular snapshotters and lazy-pulling snapshotters such as stargz.
References
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CVE-2026-93317 (GCVE-0-2026-93317)
Vulnerability from cvelistv5
Published
2026-10-05 17:43
Modified
2026-10-05 19:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Summary
An unauthenticated attacker controlling a registry or OCI-layout blob source could provide blob contents that did not match the claimed digest. The resulting snapshot could be cached under that digest and reused by a later victim build, compromising build-input integrity.
References
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|---|---|---|
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CVE-2026-93316 (GCVE-0-2026-93316)
Vulnerability from cvelistv5
Published
2026-10-05 17:42
Modified
2026-10-05 19:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
If BuildKit daemon is started with --cdi-disabled it can lead to daemon panic when builds try to use CDI devices. This can happen maliciously or by accident.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-75593 (GCVE-0-2026-75593)
Vulnerability from cvelistv5
Published
2026-08-19 20:06
Modified
2026-08-25 14:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.2, a custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access BuildKit control API to issue builds, eg., bypass authentication, etc. This issue is fixed in version 0.31.2.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2026-61711 (GCVE-0-2026-61711)
Vulnerability from cvelistv5
Published
2026-08-19 20:03
Modified
2026-08-20 13:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-20 - Improper Input Validation
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.1, a custom frontend could place an invalid SecurityMode value in a crafted build request, and executor/oci/spec_linux.go treated the unsupported value as a non-sandbox mode without requiring the security.insecure entitlement. This disabled Seccomp and AppArmor protections for the build container even though Linux capabilities remained restricted. This issue is fixed in version 0.31.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-61712 (GCVE-0-2026-61712)
Vulnerability from cvelistv5
Published
2026-08-19 20:01
Modified
2026-08-21 19:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.1, BuildKit read attacker-controlled /etc/passwd and /etc/group files without an upper bound while resolving a username to a user identifier or group identifier in executor/oci/user.go and solver/llbsolver/ops/user_linux.go. A malicious base image or build could provide oversized files that exhausted memory during user resolution and caused out-of-memory termination of the buildkitd process. This issue is fixed in version 0.31.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-15793 (GCVE-0-2026-15793)
Vulnerability from cvelistv5
Published
2026-07-21 16:10
Modified
2026-07-21 16:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-88 - Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Summary
BuildKit custom frontends or clients using the raw low-level API can set git.checkoutbundle=true when checking out Git sources. If the Git source is malicious, this could lead to a crafted command invocation on the host.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-15792 (GCVE-0-2026-15792)
Vulnerability from cvelistv5
Published
2026-07-21 16:10
Modified
2026-07-21 17:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-20 - Improper Input Validation
Summary
A malicious BuildKit client or frontend could craft a request that could lead to BuildKit daemon crashing with a panic.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-15791 (GCVE-0-2026-15791)
Vulnerability from cvelistv5
Published
2026-07-21 16:10
Modified
2026-07-21 17:08
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
A crafted message in the BuildKit low-level build API can be used to remove the contents of the /tmp directory. The action that can normally be used to delete files inside the build container rootfs can escape into the real host temp directory.
References
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CVE-2026-15789 (GCVE-0-2026-15789)
Vulnerability from cvelistv5
Published
2026-07-21 16:10
Modified
2026-07-21 17:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentication, etc.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-15788 (GCVE-0-2026-15788)
Vulnerability from cvelistv5
Published
2026-07-20 19:12
Modified
2026-07-21 12:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Summary
BuildKit's cache mount source= selector on Windows Container on Windows (WCOW) workers does not detect NTFS directory junctions placed inside the cache root. A build authored by an untrusted user on a WCOW-configured BuildKit daemon can read arbitrary host files reachable to the BuildKit daemon process.
References
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|---|---|---|
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CVE-2026-33748 (GCVE-0-2026-33748)
Vulnerability from cvelistv5
Published
2026-03-27 14:00
Modified
2026-03-27 19:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, insufficient validation of Git URL fragment subdir components may allow access to files outside the checked-out Git repository root. Possible access is limited to files on the same mounted filesystem. The issue has been fixed in version v0.28.1 The issue affects only builds that use Git URLs with a subpath component. As a workaround, avoid building Dockerfiles from untrusted sources or using the subdir component from an untrusted Git repository where the subdir component could point to a symlink.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2026-33747 (GCVE-0-2026-33747)
Vulnerability from cvelistv5
Published
2026-03-27 00:49
Modified
2026-03-27 19:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, when using a custom BuildKit frontend, the frontend can craft an API message that causes files to be written outside of the BuildKit state directory for the execution context. The issue has been fixed in v0.28.1. The vulnerability requires using an untrusted BuildKit frontend set with `#syntax` or `--build-arg BUILDKIT_SYNTAX`. Using these options with a well-known frontend image like `docker/dockerfile` is not affected.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2024-23653 (GCVE-0-2024-23653)
Vulnerability from cvelistv5
Published
2024-01-31 22:03
Modified
2024-08-23 18:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-863 - Incorrect Authorization
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. In addition to running containers as build steps, BuildKit also provides APIs for running interactive containers based on built images. It was possible to use these APIs to ask BuildKit to run a container with elevated privileges. Normally, running such containers is only allowed if special `security.insecure` entitlement is enabled both by buildkitd configuration and allowed by the user initializing the build request. The issue has been fixed in v0.12.5 . Avoid using BuildKit frontends from untrusted sources.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2024-23652 (GCVE-0-2024-23652)
Vulnerability from cvelistv5
Published
2024-01-31 21:57
Modified
2025-06-17 21:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. A malicious BuildKit frontend or Dockerfile using RUN --mount could trick the feature that removes empty files created for the mountpoints into removing a file outside the container, from the host system. The issue has been fixed in v0.12.5. Workarounds include avoiding using BuildKit frontends from an untrusted source or building an untrusted Dockerfile containing RUN --mount feature.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2024-23651 (GCVE-0-2024-23651)
Vulnerability from cvelistv5
Published
2024-01-31 21:49
Modified
2025-05-29 15:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Two malicious build steps running in parallel sharing the same cache mounts with subpaths could cause a race condition that can lead to files from the host system being accessible to the build container. The issue has been fixed in v0.12.5. Workarounds include, avoiding using BuildKit frontend from an untrusted source or building an untrusted Dockerfile containing cache mounts with --mount=type=cache,source=... options.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2024-23650 (GCVE-0-2024-23650)
Vulnerability from cvelistv5
Published
2024-01-31 21:42
Modified
2024-11-12 20:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. A malicious BuildKit client or frontend could craft a request that could lead to BuildKit daemon crashing with a panic. The issue has been fixed in v0.12.5. As a workaround, avoid using BuildKit frontends from untrusted sources.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2023-26054 (GCVE-0-2023-26054)
Vulnerability from cvelistv5
Published
2023-03-06 18:05
Modified
2025-02-25 15:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. In affected versions when the user sends a build request that contains a Git URL that contains credentials and the build creates a provenance attestation describing that build, these credentials could be visible from the provenance attestation. Git URL can be passed in two ways: 1) Invoking build directly from a URL with credentials. 2) If the client sends additional version control system (VCS) info hint parameters on builds from a local source. Usually, that would mean reading the origin URL from `.git/config` file. When a build is performed under specific conditions where credentials were passed to BuildKit they may be visible to everyone who has access to provenance attestation. Provenance attestations and VCS info hints were added in version v0.11.0. Previous versions are not vulnerable. In v0.10, when building directly from Git URL, the same URL could be visible in `BuildInfo` structure that is a predecessor of Provenance attestations. Previous versions are not vulnerable. This bug has been fixed in v0.11.4. Users are advised to upgrade. Users unable to upgrade may disable VCS info hints by setting `BUILDX_GIT_INFO=0`. `buildctl` does not set VCS hints based on `.git` directory, and values would need to be passed manually with `--opt`.
References
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