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CVE intelligence

CVE-2026-97032

Vulnerability intelligence

Published Oct 8, 2026Sources checked Oct 21, 2026
7.5HIGHCVSS out of 10
What this means

Review the available evidence

CVE-2026-97032 and is rated High severity with a CVSS score of 7.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Oct 21, 2026
Vendor remediation details

Release Notes

Vendor-listed releases

  • 1.7.0-2
  • 1.12.15-15
  • 0.5.1-10
  • 2.3.7-1
  • 1.62.0-9
  • 0.14.0-19
  • 2.27.0-16
  • 0.24.2-34
  • 2.102.0-2
  • 2.7.5-22
  • 3.10.182-6
  • 2.14.1-22
  • 0.0.10-11
  • 1.8.4-4
  • 1.15.0-7
  • 4.0.2-12
  • 1.9.5-23
  • 0.12.0-12
  • 1.7.0-6
  • 0.8.2-6
  • 1.14.4-14
  • 1.31.0-35
  • 19.0.4-15
CISA KEVNot listedBased on the latest collected catalog
EPSS0.4%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview

What is CVE-2026-97032?

HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently.

This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends.

A malicious client can repeatedly send a request while changing the header table size to crash the server.

Source: NVD