SB2026061976 - Resource exhaustion in turbo-stream

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Main Vulnerability Database SB2026061976

SB2026061976 - Resource exhaustion in turbo-stream

Published: June 19, 2026

Security Bulletin ID SB2026061976
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Resource exhaustion (CVE-ID: CVE-2026-34077)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled resource consumption in the single-fetch serialization algorithm when encoding specific types of data into server responses. A remote attacker can supply crafted input that is reflected into a server response to cause a denial of service.

Only React Router v7 framework mode and Remix with single fetch enabled are vulnerable.


Remediation

Install update from vendor's website.

References