CVE-2016-9589: red hat, inc. wildfly Uncontrolled Resource Consumption
Vulnerability summary
CVE-2016-9589 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in red hat, inc. wildfly. EPSS estimates a 2.96% chance of exploitation in the next 30 days, higher than 87.2% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 3% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 8Timeline
- 12-03-2018PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Undertow in Red Hat wildfly before version 11.0.0.Beta1 is vulnerable to a resource exhaustion resulting in a denial of service. Undertow keeps a cache of seen HTTP headers in persistent connections. It was found that this cache can easily exploited to fill memory with garbage, up to "max-headers" (default 200) * "max-header-size" (default 1MB) per active TCP connection.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · MavenEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.96%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.96% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Org.wildfly1 product
- wildfly-undertow< 11.0.0.Beta1
Red hat, inc.1 product
- wildfly11.0.0.Beta1
Redhat1 product
- jboss_wildfly_application_server≤ 10.1.0 | 11.0.0:alpha1
3 vendors · 3 products
References
16 linksShow all 16 references
- github.com/wildfly/wildflyPACKAGE