Resource allocation without limits in Undertow
Priority LOW 36CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 11 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-770.
Summary
A flaw was discovered in Undertow in versions before Undertow 2.1.1.Final where certain requests to the "Expect: 100-continue" header may cause an out of memory error. This flaw may potentially lead to a denial of service.
Why it matters now
EPSS 0.01465 73rd percentileScored 2026-11-07
Fix Partial io.undertow:undertow-core (Maven): 2.1.1.FinalRed Hat: 11 advisoriesRed Hat: 11 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Undertow | Versions before Undertow 2.1.1.Final. | — | No fix listed | CNA |
| — | io.undertow:undertow-core (Maven) | before 2.1.1.Final | 2.1.1.Final | Patch available | GHSA-g4cp-h53p-v3v8 |
- Undertow Vendor— Affected Versions before Undertow 2.1.1.Final. Fixed in — No fix listed CNA
- io.undertow:undertow-core (Maven) Vendor— Affected before 2.1.1.Final Fixed in 2.1.1.Final Patch available GHSA-g4cp-h53p-v3v8
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:* | before 2.1.1 | Vulnerable | Red Hat |
| cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:redhat:jboss_enterprise_application_platform:-:*:*:*:text-only:*:*:* | not specified by NVD | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openshift_application_runtimes:-:*:*:*:text-only:*:*:* | not specified by NVD | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2:*:*:*:*:*:*:* | 7.2 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Running on | Red Hat |
- cpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:* Versions before 2.1.1 Vulnerable ·Red Hat
- cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:redhat:jboss_enterprise_application_platform:-:*:*:*:text-only:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openshift_application_runtimes:-:*:*:*:text-only:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
- cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Running on ·Red Hat
Remediation
- Fix · GHSA-g4cp-h53p-v3v8 io.undertow:undertow-core (Maven) Fixed in 2.1.1.Final Advisory →
Red Hat 11 advisories
- RHSA-2025:16668 Released 2025-09-25 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.1.12 on RHEL 7 security update
- Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 Server eap7-apache-commons-beanutils-1.11.0-1.redhat_00001.1.ep7.el7, eap7-hibernate-validator-5.3.6-1.SP1_redhat_00001.1.ep7.el7, eap7-hibernate-validator-cdi-5.3.6-1.SP1_redhat_00001.1.ep7.el7 +7
- RHSA-2020:3585 Released 2020-08-31 · Red Hat rating ImportantEAP Continuous Delivery Technical Preview Release 20 security update
- EAP-CD 20 Tech Preview
- RHSA-2020:2905 Released 2020-07-23 · Red Hat rating ImportantRed Hat build of Thorntail 2.7.0 security and bug fix update
- Text-Only RHOAR
Show 8 more Red Hat advisories
- RHSA-2020:2511 Released 2020-06-11 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.3.1 Security update
- Red Hat JBoss EAP 7.3 for RHEL 6 Server eap7-activemq-artemis-2.9.0-4.redhat_00010.1.el6eap, eap7-activemq-artemis-cli-2.9.0-4.redhat_00010.1.el6eap, eap7-activemq-artemis-commons-2.9.0-4.redhat_00010.1.el6eap +47
- RHSA-2020:2512 Released 2020-06-11 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.3.1 Security update
- Red Hat JBoss EAP 7.3 for RHEL 7 Server eap7-activemq-artemis-2.9.0-4.redhat_00010.1.el7eap, eap7-activemq-artemis-cli-2.9.0-4.redhat_00010.1.el7eap, eap7-activemq-artemis-commons-2.9.0-4.redhat_00010.1.el7eap +47
- RHSA-2020:2513 Released 2020-06-11 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.3.1 Security update
- Red Hat JBoss EAP 7.3 for BaseOS-8 eap7-activemq-artemis-2.9.0-4.redhat_00010.1.el8eap, eap7-activemq-artemis-cli-2.9.0-4.redhat_00010.1.el8eap, eap7-activemq-artemis-commons-2.9.0-4.redhat_00010.1.el8eap +47
- RHSA-2020:2515 Released 2020-06-10 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.3.1 Security update
- Red Hat JBoss Enterprise Application Platform 7
- RHSA-2020:2061 Released 2020-05-11 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.2.8 security update
- Red Hat JBoss EAP 7.2
- RHSA-2020:2060 Released 2020-05-11 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.2.8 on RHEL 8 security update
- Red Hat JBoss EAP 7.2 for RHEL 8 eap7-activemq-artemis-2.9.0-4.redhat_00010.1.el8eap, eap7-activemq-artemis-cli-2.9.0-4.redhat_00010.1.el8eap, eap7-activemq-artemis-commons-2.9.0-4.redhat_00010.1.el8eap +47
- RHSA-2020:2059 Released 2020-05-11 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.2.8 on RHEL 7 security update
- Red Hat JBoss EAP 7.2 for RHEL 7 Server eap7-activemq-artemis-2.9.0-4.redhat_00010.1.el7eap, eap7-activemq-artemis-cli-2.9.0-4.redhat_00010.1.el7eap, eap7-activemq-artemis-commons-2.9.0-4.redhat_00010.1.el7eap +47
- RHSA-2020:2058 Released 2020-05-11 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.2.8 on RHEL 6 security update
- Red Hat JBoss EAP 7.2 for RHEL 6 Server eap7-activemq-artemis-2.9.0-4.redhat_00010.1.el6eap, eap7-activemq-artemis-cli-2.9.0-4.redhat_00010.1.el6eap, eap7-activemq-artemis-commons-2.9.0-4.redhat_00010.1.el6eap +47
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Application Runtimes | Affected | No fix yet |
| EAP-CD 20 Tech Preview | Fixed | RHSA-2020:3585 |
| Red Hat JBoss EAP 7.2 | Fixed | RHSA-2020:2061 |
| Red Hat JBoss EAP 7.2 for RHEL 6 Server | Fixed | RHSA-2020:2058 |
| Red Hat JBoss EAP 7.2 for RHEL 7 Server | Fixed | RHSA-2020:2059 |
| Red Hat JBoss EAP 7.2 for RHEL 8 | Fixed | RHSA-2020:2060 |
| Red Hat JBoss EAP 7.3 for BaseOS-8 | Fixed | RHSA-2020:2513 |
| Red Hat JBoss EAP 7.3 for RHEL 6 Server | Fixed | RHSA-2020:2511 |
| Red Hat JBoss EAP 7.3 for RHEL 7 Server | Fixed | RHSA-2020:2512 |
| Red Hat JBoss Enterprise Application Platform 7 | Fixed | RHSA-2020:2515 |
| Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 Server | Fixed | RHSA-2025:16668 |
| Text-Only RHOAR | Fixed | RHSA-2020:2905 |
Not affected: 3 products
- Red Hat Decision Manager 7
- Red Hat JBoss Enterprise Application Platform 6
- Red Hat Process Automation 7
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10705
- 2026-10-03 Alias added: GHSA-g4cp-h53p-v3v8
- 2026-11-05 Fix available: Red Hat JBoss Enterprise Application Platform 7 · Red Hat
References
Sources
- CVE-2020-10705 · CVE Program
- CVE-2020-10705 · NVD
- FIRST EPSS
- GHSA-g4cp-h53p-v3v8 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-10705 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences