CVE-2026-56386: Apache bRPC 0 to before 1.18.0

CVE-2026-56386. CVSS 3.1 base score 7.5 (HIGH, Source advisory).

Affected technology

Apache bRPC · 0 to before 1.18.0
Apache Software Foundation

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An unauthenticated remote attacker can cause denial of service by sending a malformed DATA frame with the PADDED flag set and a zero-length payload. Source advisory’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high.

Published 21-Oct-2026 16:14 UTC

CWE: CWE-125, CWE-191
CCR priority: 30.0 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Source advisory
KEV: no

Provenance

GitHub Advisory Database · Source record · observed 2026-10-21 16:14:50.830645+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-21 16:09:05.633125+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-56386.html