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VulnerabilityPublished

CVE-2026-92543: docker security update

Affects dockerSource GCVE Database

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Authoritative record:CVE-2026-92543· High 7.6

Not known to be exploited · CVSS 7.6 High : upgrade to engine-18.09.0-355.oe2203sp4 soon.

Data as of 29 Oct 2026, 10:37 UTC

CVSS 4.0 base score
7.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.08% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in engine-18.09.0-355.oe2203sp4
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade docker to engine-18.09.0-355.oe2203sp4.

Affected software

ProductAffectedFixed in
openEuler 22.03-LTS-SP4dockerpkg:rpm/openEuler/docker&distro=openEuler-22.03-LTS-SP4Other threatsAffected
  • <engine-18.09.0-355.oe2203sp4
Fixed in
  • engine-18.09.0-355.oe2203sp4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Apply the official fix by upgrading Docker Engine to version 18.09.0-355.oe2203sp4 or later. This update corrects the insecure registry hostname classification and prevents the bypass of certificate verification. No other mitigation or workaround is indicated by the vendor advisory.

Description

Docker Engine contains a vulnerability in its handling of insecure registries where a DNS response containing both a loopback IP and a non-loopback attacker IP can bypass certificate verification and enable HTTP fallback. This occurs because the insecure registry check uses an any-match DNS approach that considers a hostname insecure if any resolved address matches an insecure CIDR, but the transport reconnects using the hostname rather than the matched address. This flaw is fixed in Docker Engine version 18.09.0-355.oe2203sp4.

References

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