CVE-2026-92543: docker security update
Affects dockerSource GCVE Database
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
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 7 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
openEuler 22.03-LTS-SP4dockerpkg:rpm/openEuler/docker&distro=openEuler-22.03-LTS-SP4Other threats | Affected
| Fixed in
|
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.