Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessAccess Docker-enabled Alpine host
-
ExploitInteract with vulnerable Docker component
-
ExecutionTrigger undisclosed flaw
-
ImpactUndetermined impact
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Anti-spoofing controls
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Cannot be determined from available data - the advisory only states that Docker is 'fixed in 29.8.2-r0' on Alpine Linux and provides no attack vector, privilege, or configuration detail. The one concrete prerequisite that can be stated is environmental: the target must be an Alpine Linux host running the Docker package at a revision earlier than 29.8.2-r0. Whether exploitation requires local access to the host, interaction with the Docker daemon/socket, a malicious image or container, specific daemon configuration, or authentication is NOT specified in the input and must be obtained from the upstream Docker/Moby CVE and the Alpine security database before defenders can assess realistic exposure. |
| Impact | This entry provides almost no technical signal to assess real-world risk. The only data present is an Alpine Linux advisory-style string ('docker fixed in 29.8.2-r0') and a reporter of 'vendor:alpine' - there is no CVSS score, no CVSS vector, no CWE, and no description of the vulnerability class, attack vector, or impact. As a result, none of the standard prioritization signals can be evaluated: attack vector, complexity, and privilege requirements are all unknown; there is no EPSS probability provided; KEV status is not indicated (treat as not listed); no POC is referenced; and no SSVC exploitation/automatable/technical-impact values are available. Exploitation status is therefore 'no public exploit identified at time of analysis.' The one meaningful risk amplifier is prevalence: Docker Engine is ubiquitously deployed across development, CI/CD, and production container hosts, so ANY genuine Docker Engine vulnerability has a very large attack surface. However, with the actual flaw undescribed it is impossible to distinguish a high-priority container-escape/privilege-escalation issue from a low-severity local or informational bug. This must be treated as an incomplete record: the affected component (Docker, as packaged by Alpine) and the fixed version (29.8.2-r0) are the only confirmed facts, and a vendor advisory (Alpine secdb / the upstream Moby/Docker CVE) should be consulted before any prioritization decision. |
| Exploit ScenarioDerived | No exploit scenario can be responsibly constructed because the vulnerability class, attack vector, and impact are not described in the available data. In general terms, an attacker or malicious container/image would interact with the Docker daemon on an Alpine host running a version prior to 29.8.2-r0, but the specific trigger and outcome are unknown. No POC is referenced in the input. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Sep 30, 2026
Docker on Alpine Linux is affected by CVE-2026-92542, which the Alpine maintainers addressed by releasing Docker package revision 29.8.2-r0, superseding all earlier revisions of the package in the Alpine repositories. The advisory is a package-level fix notification only: it carries no CVSS score, no CWE mapping, no attack vector, and no privilege or configuration detail, so the precise defect and its exploitation prerequisites cannot be established from this data alone. The only firm, verifiable exposure condition is environmental - an Alpine Linux host running the Docker package at a revision below 29.8.2-r0. No public exploit code and no confirmed active exploitation (CISA KEV) have been identified at time of analysis, and no EPSS score was supplied.
RemediationAI
Vendor-released patch: 29.8.2-r0 - upgrade the Alpine Docker package to 29.8.2-r0 or later, for example with 'apk update && apk upgrade docker' (or 'apk add --upgrade docker' to force the newer revision), then verify with 'apk version -l "<"' that no docker subpackages remain below the fixed revision and rebuild any container images whose base layer pinned an older docker package. Because the advisory discloses no attack vector, treat the window before upgrade as unquantified rather than low risk, and prioritise hosts that run the Docker daemon with elevated exposure. Compensating controls, with their trade-offs: restrict access to /var/run/docker.sock (remove untrusted users from the docker group, keep the socket mode at 0660 and root-owned) - this breaks Docker access for non-privileged CI runners, monitoring agents, and developer tooling that rely on group membership; never expose dockerd over plaintext TCP (avoid -H tcp://0.0.0.0:2375) and if remote API access is required enable mutual TLS on port 2376 - this adds certificate issuance and rotation overhead and can break existing clients; stop mounting the Docker socket into containers, since socket-mounted containers are effectively root on the host - this may break watchtower-style agents, log collectors, and build-in-container workflows; and enable the Docker userns-remap or rootless mode for workloads where compatible - this can break images expecting real root inside the container and complicates volume permission handling. Until the Alpine secdb and upstream Moby advisory are reviewed, do not assume the fix is confined to production workloads; also patch build hosts and CI runners, which frequently run older, unmanaged Docker packages. Advisory tracking: the Alpine Linux security database entry for CVE-2026-92542, and the linked upstream Docker/Moby security advisory, should be used to confirm whether additional configuration changes or image rebuilds are required.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This entry originates from the Alpine Linux vendor advisory stream rather than from an upstream Moby/Docker advisory, which means the technical root cause is not described in the supplied data and no CWE class can be assigned. Alpine packages track upstream Moby/Docker releases and append a distribution revision suffix (-r0, -r1, and so on) for packaging changes; the fixed identifier 29.8.2-r0 therefore indicates either an upstream Docker release 29.8.2 absorbed into Alpine or a coordinated Alpine rebuild carrying the upstream fix. Because no CPE strings, CVSS vector, or component-level detail were provided, it is impossible to tell whether the underlying issue sits in the Docker daemon (dockerd), the CLI, containerd/runc components, or Alpine's packaging and build scripts for the docker aport. This matters for scoping: the Docker daemon typically runs as root and has direct control over host networking, filesystems, cgroups, and namespaces, so a defect in that layer can escalate well beyond the container boundary, whereas a CLI or packaging defect may be far narrower. Analysts should correlate CVE-2026-92542 with the upstream Moby security advisory and the Alpine secdb entry (security.alpinelinux.org) to recover the vector, CWE, and affected subpackages before drawing conclusions about blast radius.
Know when Alpine gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Primary rating from Vendor (vendor:alpine) · only source for this CVE.
CVSS VectorVendor: vendor:alpine
Lifecycle Timeline
3DescriptionCVE.org
Alpine Linux: docker fixed in 29.8.2-r0
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS. Rated medium severity (CVSS
Improper TLS certificate validation in the Docker client shipped as the Alpine Linux docker package before 29.8.2-r0 all
Alpine is a scaffolding library in Java. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involvi
Alpine is a scaffolding library in Java. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, n
FrankenPHP's official Debian and Alpine Docker images prior to 1.12.5 ship a placeholder /app/public/index.php that exec
EUVD-2026-94483
NVD
CVE.org
EPSS
GitHub
Exploit-DB