CVE-2023-6841

highpriority · track · 0EPSS 0.007 · 54 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.74% (54th) EPSS

CVSS 7.5 · high

Is it mine?

7 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

A denial of service vulnerability was found in keycloak where the amount of attributes per object is not limited,an attacker by sending repeated HTTP requests could cause a resource exhaustion when the application send back rows with long attribute values.

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 · 6.5–7.5

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

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

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · secalert@redhat.com USexploitability 3.9 · impact 3.6

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-231USCWE-231US

affected products (7)

Products and version ranges known to be affected.

Hitachi Ops Center <11.0.4-00all versionscert_bundDE
Open Source Keycloak <=25.0.5all versionscert_bundDE
Hitachi Ops Center< 11.0.4-00cert_bundDE
Open Source Keycloak≤ 25.0.5cert_bundDE
redhat keycloakall versionsnvdUScpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
redhat single sign-on= 7.0nvdUScpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*
Maven org.keycloak:keycloak-core< 24.0.0osvUSpkg:maven/org.keycloak/keycloak-core

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-2108Keycloak: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-09-10csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Keycloak ausnutzen, um einen Denial of Service Angriff durchzuführen.
GHSA-w97f-w3hq-36g2Keycloak Denial of Service vulnerability2024-09-10ghsa · osvUS
A denial of service vulnerability was found in keycloak where the amount of attributes per object is not limited, an attacker by sending repeated HTTP requests could cause a resource exhaustion when the application send back rows with long attribute values. The issue is fixed in Keycloak 24 with the introduction of the User Profile feature.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2024-09-10modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

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