CVE-2020-10758

mediumpriority · track · 31EPSS 0.019 · 80 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.95% (80th) EPSS

CVSS 5 · medium

Is it mine?

14 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A vulnerability was found in Keycloak before 11.0.1 where DoS attack is possible by sending twenty requests simultaneously to the specified keycloak server, all with a Content-Length header value that exceeds the actual byte count of the request body.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USprimaryCWE-770USCWE-770US

affected products (14)

Products and version ranges known to be affected.

n/a KeyCloak≤ Keycloak before 11.0.1enisa_euvdEU
Red Hat Inc. Keycloak≤ 11.0.1fstec_bduRU
Red Hat Inc. OpenShift Application Runtimes≤ 1.0fstec_bduRU
Red Hat Inc. Red Hat Single Sign-On≤ 7fstec_bduRU
Red Hat Inc. Red Hat Single Sign-On≤ 7.4 for RHEL 7fstec_bduRU
Red Hat Inc. Red Hat Single Sign-On≤ 7.4 for RHEL 8fstec_bduRU
Red Hat Inc. Red Hat Single Sign-On≤ 7.4 for RHEL 6fstec_bduRU
redhat keycloak< 11.0.1nvdUScpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
redhat openshift application runtimesall versionsnvdUScpe:2.3:a:redhat:openshift_application_runtimes:*:*:*:*:*:*:*:*
redhat openshift application runtimes= 1.0nvdUScpe:2.3:a:redhat:openshift_application_runtimes:*:*:*:*:*:*:*:*
redhat single sign-onall versionsnvdUScpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*
redhat single sign-on= 7.0nvdUScpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*
redhat single sign-on= 7.4nvdUScpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*
Maven org.keycloak:keycloak-parent< 11.0.1osvUSpkg:maven/org.keycloak/keycloak-parent

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-52rg-hpwq-qp56Allocation of Resources Without Limits or Throttling in Keycloak2022-02-09ghsa · osvUS
A vulnerability was found in Keycloak before 11.0.1 where DoS attack is possible by sending twenty requests simultaneously to the specified keycloak server, all with a Content-Length header value that exceeds the actual byte count of the request body.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2020-09-16modified 2026-06-17

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+3263 more

references (15)

External citations — patches, advisories, analysis.

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