Vulnerability in io.vertx:vertx-core (CVE-2026-6860)
Summary
Vulnerability in io.vertx:vertx-core (CVE-2026-6860). Risk of unauthorized operations or information disclosure. Exploitable via SslContext. Mitigation: upgrade to 5.0.12 or later.
Original description
The description as published by the source.
A TCP client can perform a TLS handshake and present the server name extension with a server name that is accepted by a server wildcard name, e.g. if the server is configured with a certificate accepting *.example.com, any XYZ.example.com where xyz is a valid name can be used.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-6860 has been found in io.vertx:vertx-core.
Attackers can target a specific entry point like SslContext over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 5.3/10.
What to do: upgrade io.vertx:vertx-core to 5.0.12 or later.
If unsure, ask your IT team or search "io.vertx:vertx-core CVE-2026-6860" on the vendor's site.
CVE-2026-6860 (io.vertx:vertx-core) — CWE-295 / CVSS v3 5.3
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: SslContext / SSLHelper / SslChannelProvider / master
Patched: 5.0.12 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-295) exists in io.vertx:vertx-core. Attackers reach the vulnerable code path via SslContext without authentication.
Check the vendor advisory for the affected versions of io.vertx:vertx-core. Attack surface: SslContext / SSLHelper / SslChannelProvider / master.
Severity: Medium (CVSS 5.3/10). Risk of unauthorized operations or information disclosure.
Update to 5.0.12.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで io.vertx:vertx-core を使っているサービスとバージョンを洗い出す。
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2Apply patch patch
Upgrade io.vertx:vertx-core to 5.0.12ステージング環境で 5.0.12 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- patch github.com
- report gitlab.eclipse.org
- web github.com
- web github.com
- web vertx.io
- web vertx.io