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CVE-2026-45756Symfony: JsonPath Evaluates Attacker-Controlled Regular Expressions in match()/search() Without Limits — ReDoS

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.3.0-BETA1 until 7.4.12 and 8.0.12, the JsonPath component compiles attacker-controlled match() and search() filter patterns directly into preg_match() without a length cap, i-regexp restriction, or bounded backtracking, allowing catastrophic-backtracking expressions to pin worker CPU and cause denial of service. This issue is fixed in versions 7.4.12 and 8.0.12.

8.2 HIGHEPSS 0.63%Not in KEVNVD: Analyzed

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
8.2HIGH4.0GitHub_M (CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5HIGH3.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CVE ID
CVE-2026-45756
Status
Analyzed
Assigner (CNA)
GitHub_M
Published
Jul 14, 2026
Last modified
2026-07-21 19:17 UTC
Weaknesses
  • CWE-400 · Uncontrolled Resource Consumption
  • CWE-1333 · Inefficient Regular Expression Complexity

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-09 10:38 UTC.