CVE-2026-92543
waiting for further signalsZero needs more public information before it can validate it.GHSA-7cfq-22r6-qp73 ↗EUVD-2026-94484 ↗
description
Docker Engine releases before 29.8.2 and the moby Go module before v2.0.0-beta.25 incorrectly classify certain registry hostnames as insecure based on DNS results. An attacker able to influence a registry hostname's DNS answers could cause the daemon to connect without normal certificate verification, exposing registry credentials or allowing replacement of images referenced by mutable tags.
mitigation
Upgrade Docker Engine to v29.8.2 or later, and update github.com/moby/moby/v2 to v2.0.0-beta.25 or later where applicable. Until upgraded, pin registry names to trusted non-loopback addresses through trusted DNS or hosts entries and restrict daemon egress to approved registry endpoints.
fixed in v2.0.0-beta.25, 29.8.2
outcome
Contextual: an exploit technique exists, but no deterministic check could cover this one.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-10-01 21:19Zghsa: trigger signal, started the run
- 2026-10-07 16:44Zcve.org record for CVE-2026-92543
this entry in the feed
GET /api/v1/feed/CVE-2026-92543
{ "etk_id": "ETK-2026-316", "cve_id": "CVE-2026-92543", "display_id": "CVE-2026-92543", "ghsa_id": "GHSA-7cfq-22r6-qp73", "euvd_id": "EUVD-2026-94484", "status": "published", "anchor_state": "anchored", "title": "DNS any-match validation bypass in Docker Engine", "summary": "Docker Engine releases before 29.8.2 and the moby Go module before v2.0.0-beta.25 incorrectly classify certain registry hostnames as insecure based on DNS results. An attacker able to influence a registry hostname's DNS answers could cause the daemon to connect without normal certificate verification, exposing registry credentials or allowing replacement of images referenced by mutable tags.", "mitigation": "Upgrade Docker Engine to v29.8.2 or later, and update github.com/moby/moby/v2 to v2.0.0-beta.25 or later where applicable. Until upgraded, pin registry names to trusted non-loopback addresses through trusted DNS or hosts entries and restrict daemon egress to approved registry endpoints.", "vendor": "go", "product": "go:github.com/moby/moby/v2", "affected": [ { "affected_notes": [], "affected_ranges": [ "< v2.0.0-beta.25" ], "ecosystem": "go", "fixed_versions": [ "v2.0.0-beta.25" ], "package_name": "github.com/moby/moby/v2", "purl": "pkg:golang/github.com/moby/moby/v2" }, { "affected_notes": [], "affected_ranges": [ "< 29.8.2" ], "ecosystem": null, "fixed_versions": [ "29.8.2" ], "package_name": "Docker Engine", "purl": null } ], "cwes": [ 295 ], "cvss_score": 7.6, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "epss_score": 0.0009, "epss_percentile": 0.0034, "epss_asof": "2026-10-20", "automation": "contextual", "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": 8.604613316666667, "t0_at": "2026-10-07T16:44:21.237000+00:00", "signals": { "trigger_signal": { "at": "2026-10-01T21:19:06+00:00", "days": -5.809204131944444, "is_lower_bound": false, "measured_at": "2026-10-07T16:44:21.237000+00:00", "url": "https://github.com/moby/moby/security/advisories/GHSA-7cfq-22r6-qp73" } } }
published 2026-10-02 07:57Z
last change 2026-10-21 14:33Z
Need the technical details behind an entry?
Every entry here shows what we attempted and when. The technical details, the generated exploit that fired it and the evidence behind the verdict are not public. Tell us about your use case and we’ll get back to you about extended API access.