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Sicherheitslücken in docker.io

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für docker.io: 12. Davon im KEV-Katalog: 0.

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Sicherheitslücken: 29

  1. CVE-2026-92543

    Hoch · CVSS 7.6EPSS 0,09%Keine Korrektur veröffentlicht

    Docker Engine insecure-registry fallback via malicious DNS responses

    Docker Engine classifies a registry hostname as insecure using an any-match DNS check. loadInsecureRegistries() injects 127.0.0.0/8 and ::1/128 as insecure CIDRs by default. isCIDRMatch resolves all of the hostname's addresses and returns true if a single address is in the insecure CIDR list. Because the transport re-dials the hostname rather than the CIDR-matching address, a DNS answer set of one loopback IP plus a non-loopback attacker IP disables certificate verification and enables HTTP fallback for the registry connection.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗

  2. CVE-2026-92542

    Mittel · CVSS 6.9EPSS 0,07%Keine Korrektur veröffentlicht

    Blind VXLAN injection into encrypted overlay networks from cluster peer

    The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria: - UDP datagram - Destination port is the Swarm data-path port - Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗

  5. CVE-2026-93326

    Mittel · CVSS 6EPSS 0,25%Keine Korrektur veröffentlicht

    Crafted Git build source can bypass certain policy validation

    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.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  6. CVE-2026-93323

    Mittel · CVSS 6.8EPSS 0,11%Keine Korrektur veröffentlicht

    Oversized Dockerfile or .dockerignore can exhaust buildkitd memory

    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.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  10. CVE-2026-93318

    Hoch · CVSS 7.5EPSS 0,17%Keine Korrektur veröffentlicht

    Cache poisoning via unvalidated image layer DiffIDs

    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

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  11. CVE-2026-93317

    Mittel · CVSS 5.9EPSS 0,16%Keine Korrektur veröffentlicht

    Container blob cache can accept unverified content

    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.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  13. CVE-2026-79994

    Hoch · CVSS 8.7EPSS 0,14%Keine Korrektur veröffentlicht

    Docker Sandboxes UDS forwarder can reach arbitrary host Unix sockets through a symlink race

    The guest-to-host Unix-domain socket relay in Docker Sandboxes validates that a socket path is inside an authorized workspace, but later reconnects using the pathname. A malicious guest can replace an intermediate directory with a symlink between validation and connection, causing the host to connect to an arbitrary AF_UNIX socket outside the shared workspace. This can expose data or host-side capabilities provided by the targeted socket.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  14. CVE-2026-17106

    Hoch · CVSS 7.1EPSS 0,44%Öffentlicher ExploitKeine Korrektur veröffentlicht

    Tar extraction in moby/go-archive can write outside the destination directory via link following

    The tar extraction routines in moby/go-archive (Unpack, UnpackLayer, Untar/UntarUncompressed, and the ApplyLayer helpers) do not confine filesystem operations to the destination directory. The extractor decides where each archive entry lands using lexical string checks and then performs the filesystem operation on a path that is resolved by the OS, so links introduced by the archive can be followed out of the destination directory. An attacker who controls the contents of an archive can create or overwrite files at arbitrary paths writable by the extracting process.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

  15. CVE-2026-15793

    Mittel · CVSS 6.5EPSS 0,2%Keine Korrektur veröffentlicht

    Git source checkout from a bundle file could lead to command injection

    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.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗

  17. CVE-2026-15791

    Niedrig · CVSS 3.3EPSS 0,25%Keine Korrektur veröffentlicht

    LLB file operation can be tricked to remove /tmp directory contents

    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.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗

  18. CVE-2026-42306

    Hoch · CVSS 7.2EPSS 0,1%Keine Korrektur veröffentlicht

    Moby: Race condition in docker cp allows bind mount redirection to host path

    Moby is an open source container framework. In Docker Engine prior to version 29.5.1, Docker Daemon versions 28.5.2 and prior, and Moby Daemon prior to version 2.0.0-beta.14, a race condition during docker cp mount setup allows a malicious container to redirect a bind mount target to an arbitrary host path, potentially overwriting host files or causing denial of service. This issue has been patched in Docker Engine version 29.5.1 and Moby Daemon version 2.0.0-beta.14.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗

  19. CVE-2026-41568

    Mittel · CVSS 6.1EPSS 0,1%Keine Korrektur veröffentlicht

    Moby: Race condition in docker cp allows creation of arbitrary empty files on the host via symlink swap

    Moby is an open source container framework. In Docker Engine prior to version 29.5.1, Docker Daemon versions 28.5.2 and prior, and Moby Daemon prior to version 2.0.0-beta.14, a race condition during docker cp mount setup allows a malicious container to create empty files or directories at arbitrary absolute paths on the host filesystem. This issue has been patched in Docker Engine version 29.5.1 and Moby Daemon version 2.0.0-beta.14.

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗

  20. CVE-2026-41567

    Hoch · CVSS 7.2EPSS 0,15%Keine Korrektur veröffentlicht

    Docker: `PUT /containers/{id}/archive` executes container binary on the host

    Moby is an open source container framework. In versions prior to 29.5.1 and in moby/moby v2 prior to v2.0.0-beta.14, when a compressed archive is uploaded to a container via `PUT /containers/{id}/archive` or piped through `docker cp -`, the daemon resolves decompression binaries (such as `xz` or `unpigz`) from the container's filesystem rather than the host's due to incorrect ordering of operations. A malicious container image containing a trojanized decompression binary can achieve arbitrary code execution with full daemon privileges, including host root UID and unrestricted capabilities, when a user uploads a compressed (xz or gzip) archive

    docker.ioBetriebssysteme
    Veröffentlicht Aktualisiert
    Originalmeldung 1 ↗Originalmeldung 2 ↗Originalmeldung 3 ↗

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