🛡️ CVE-2022-43686 — concrete-cms

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-770 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Concrete CMS vulnerable to Uncontrolled Resource Consumption leading to DoS

In Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2, the authTypeConcreteCookieMap table can be filled up causing a denial of service (high load).

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2022-43686 is classified as CWE-770: Allocation of Resources Without Limits. Resources are allocated on request with no cap, so a client can exhaust them.

Affected software

CVE-2022-43686 is recorded against 2 packages.

  • concrete-cms (from 9.0.0 up to 9.1.2)
  • concrete5/concrete5 (from 9.0.0 up to 9.1.3)

Timeline and source

Published on 14 November 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

documentation.concretecms.org
documentation.concretecms.org
github.com
github.com
www.concretecms.org
documentation.concretecms.org
documentation.concretecms.org
github.com
github.com
www.concretecms.org

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-770
Public Exploit ✅ No
Source NVD
Published 2022-11-14
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
concrete-cms 9.0.0 9.1.2
concrete5/concrete5 9.0.0 9.1.3

References

Patch, Release Notes, Third Party Advisory https://github.com/concretecms/concretecms/releases/8.5.10
Patch, Release Notes, Third Party Advisory https://github.com/concretecms/concretecms/releases/9.1.3
Patch, Release Notes, Third Party Advisory https://github.com/concretecms/concretecms/releases/8.5.10
Patch, Release Notes, Third Party Advisory https://github.com/concretecms/concretecms/releases/9.1.3

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