CVE-2026-33814

HIGH EPSS 42.6%
Published May 7, 20261mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published May 7, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
42.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-835

Affected Products 3

VendorProductVersionRange
golanggo* <1.25.10
golanggo*≥1.26.0  –  <1.26.3
golanghttp2* <0.53.0

References 5

  • go.dev https://go.dev/cl/761581
    Patch
  • go.dev https://go.dev/cl/761640
    Patch
  • go.dev https://go.dev/issue/78476
    Issue TrackingMailing List
  • groups.google.com https://groups.google.com/g/golang-announce/c/qcCIEXso47M
    Release Notes
  • pkg.go.dev https://pkg.go.dev/vuln/GO-2026-4918
    Vendor Advisory

Remediation

  • go.dev https://go.dev/cl/761581
    Patch
  • go.dev https://go.dev/cl/761640
    Patch