Loading vulnerability…
CVE-2025-52434 is an improper synchronization race condition in Apache Tomcat when the APR/Native connector is in use. The condition is particularly observable when clients initiate closure of HTTP/2 connections, allowing concurrent use of a shared resource to exhaust resources. Apache Tomcat 9.0.0.M1 through 9.0.106 are affected. End-of-life releases from 8.5.0 through 8.5.100 are also known to be affected; older end-of-life versions may be affected.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A denial-of-service vulnerability affecting Apache Tomcat.
Listed as a trending/high-risk CVE this week; no additional technical details provided in the content.
A denial-of-service vulnerability in Apache Tomcat Coyote (org.apache.tomcat:tomcat-coyote) dependency affecting Atlassian Jira Software and Jira Service Management Data Center/Server.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.