CVE-2026-56862: Go standard library crypto/tls, отказ на услуга

Описание

Оригинално описание

Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.

Засегнати продукти

• Go standard library crypto/tls: преди 1.25.13; 1.26.0-0 преди 1.26.6; 1.27.0-0 преди 1.27.0-rc.3

Вид слабост

• CWE-770 Allocation of Resources Without Limits or Throttling

История

Други уязвимости в Go standard library crypto/tls

• 7.5CVE-2026-97031
• 5.3CVE-2026-42505
• 7.5CVE-2026-32283
• 9.1CVE-2025-68121
• 5.3CVE-2025-61730

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-56862
• https://nvd.nist.gov/vuln/detail/CVE-2026-56862
• https://go.dev/issue/80528
• https://go.dev/cl/804261
• https://groups.google.com/g/golang-announce/c/94pEornpRlI
• https://pkg.go.dev/vuln/GO-2026-6090