CVE-2026-75593 BuildKit: Malicious client can bypass destination directory validation on local sources upload

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...

CVE-2026-75593

Prior to BuildKit 0.31.2, a client with control API access can craft an upload request causing files to escape the BuildKit state directory, enabling directory traversal. Fixed in v0.31.2. No exploitation details provided; CVSS 7.2 HIGH (network, low complexity, low privileges required).

EUVD-2026-62839

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...

CVE-2026-75593 BuildKit: Malicious client can bypass destination directory validation on local sources upload

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...

CVE-2026-61711

In BuildKit versions prior to 0.31.1, the file executor/oci/spec_linux.go treated an invalid SecurityMode value from a crafted build request as non-sandbox mode without requiring the security.insecure entitlement, disabling Seccomp and AppArmor protections for the build container. Linux capabilit...

CVE-2026-61711 BuildKit: Custom frontend could bypass Seccomp/AppArmor

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/speclinux.go treated the unsupported value as a...

CVE-2026-61711 BuildKit: Custom frontend could bypass Seccomp/AppArmor

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/speclinux.go treated the unsupported value as a...

CVE-2026-61711 BuildKit: Custom frontend could bypass Seccomp/AppArmor

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/speclinux.go treated the unsupported value as a...

EUVD-2026-62838

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/speclinux.go treated the unsupported value as a...

CVE-2026-61712

BuildKit versions before 0.31.1 read attacker-controlled /etc/passwd and /etc/group files without size limits during user/group resolution in executor/oci/user.go and solver/llbsolver/ops/user_linux.go, allowing oversized files to exhaust memory and crash buildkitd. Fixed in 0.31.1. No in-the-wil...

CVE-2026-61712 BuildKit: Possible runtime DoS via unbounded group parsing

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...

CVE-2026-61712 BuildKit: Possible runtime DoS via unbounded group parsing

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...

CVE-2026-61712 BuildKit: Possible runtime DoS via unbounded group parsing

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...

EUVD-2026-62837

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...

PT-2026-78681

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...

CVE-2026-61712: Allocation of Resources Without Limits or Throttling

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...

PT-2026-78680

Name of the Vulnerable Software and Affected Versions BuildKit versions prior to 0.31.1 Description BuildKit reads /etc/passwd and /etc/group files without an upper bound when resolving a username to a user or group identifier within the executor/oci/user.go and solver/llbsolver/ops/user linux.go...

CVE-2026-61711: Improper Input Validation

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/speclinux.go treated the unsupported value as a...

CVE-2026-75593: Improper Limitation of a Pathname to a Restricted Directory

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...

PT-2026-78679

Name of the Vulnerable Software and Affected Versions BuildKit versions prior to 0.31.1 Description BuildKit is a toolkit used to convert source code into build artifacts. A custom frontend can send a crafted build request containing an invalid SecurityMode value. The executor/oci/spec linux.go...