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  4. CVE 2026 92542 blind vxlan injection into encrypted overlay
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Back to active CVEs
Medium · CVSS 6.9CVE-2026-92542

Blind VXLAN injection into encrypted overlay networks from cluster peerCVE-2026-92542

Answer in brief

CVE-2026-92542 records a Medium severity (CVSS 6.9) vulnerability in Blind VXLAN injection into encrypted overlay networks from cluster peer. The current sources do not mark it as known exploited. The current feed maps Docker/Docker Engine (generic), Docker/Docker Engine overlay network driver (generic), Moby/Moby overlay network driver (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 7, 2026Updated Oct 7, 2026Source checked Oct 7, 2026First seen by HOL Oct 7, 2026Material review Oct 7, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.9
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 6.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Docker/Docker Engine (generic), Docker/Docker Engine overlay network driver (generic), Moby/Moby overlay network driver (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Docker/Docker Enginegeneric>=0 <25.0.19 || >=26.0.0 <29.8.225.0.19, 29.8.2
Docker/Docker Engine overlay network drivergeneric>=0 <v25.0.19 || >=v26.0.0 <*v25.0.19, *
Moby/Moby overlay network drivergeneric>=v2.0.0-beta.0 <v2.0.0-beta.25v2.0.0-beta.25

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Docker/Docker Engine, Docker/Docker Engine overlay network driver, Moby/Moby overlay network driver.
  2. 2Review the reported fix. Source-reported workaround: Block userspace processes from sending UDP packets to the Swarm data-path port. iptables -I OUTPUT -p udp --dport "$(docker info --format '{{.Swarm.Cluster.DataPathPort}}')" -m owner --socket-exists -j DROP

Evidence timeline and material changes

  1. Published upstream

    Oct 7, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 7, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 7, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
Upstream source description

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

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Docker Engine insecure-registry fallback via malicious DNS responsesSame docker/docker engine package
  • Gimp: gimp: heap buffer overflow in pcx export on oversized image dimensionsSame generic ecosystem
  • Gimp: gimp: heap buffer overflow in raw data export on oversized image dimensionsSame generic ecosystem
  • Gimp: gimp: heap buffer overflow in hot color filter on oversized imageSame generic ecosystem
  • Infinite Loop in Telerik Document Processing XLS ImportSame generic ecosystem
  • Backstage: Improper input validation in TechDocs Markdown extension configurationSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 7, 2026
References
1 linked source
Open source record