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CVE-2023-47111

ZITADEL race condition in lockout policy execution

7.3 HighFix available

ZITADEL provides identity infrastructure. ZITADEL provides administrators the possibility to define a Lockout Policy with a maximum amount of failed password check attempts. On every failed password check, the amount of failed checks is compared against the configured maximum. Exceeding the limit, will lock the user and prevent further authentication. In the affected implementation it was possible for an attacker to start multiple parallel password checks, giving him the possibility to try out more combinations than configured in the Lockout Policy. This vulnerability has been patched in versions 2.40.5 and 2.38.3.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
Low

Exploit likelihood

0.52%Up 0.5 points since Nov 9, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.3

ZITADEL race condition in lockout policy execution

ZITADEL provides identity infrastructure. ZITADEL provides administrators the possibility to define a Lockout Policy with a maximum amount of failed password check attempts. On every failed password check, the amount of failed checks is compared against the configured maximum. Exceeding the limit, will lock the user and prevent further authentication. In the affected implementation it was possible for an attacker to start multiple parallel password checks, giving him the possibility to try out more combinations than configured in the Lockout Policy. This vulnerability has been patched in versions 2.40.5 and 2.38.3.

Record
CVE-2023-47111
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-362
Updated
2026-11-02
EUVDEUVD-2023-2909 7.3

ZITADEL provides identity infrastructure. ZITADEL provides administrators the possibility to define a Lockout Policy with a maximum amount of failed password check attempts. On every failed password check, the amount of failed checks is compared against the configured maximum. Exceeding the limit, will lock the user and prevent further authentication. In the affected implementation it was possible for an attacker to start multiple parallel password checks, giving him the possibility to try out more combinations than configured in the Lockout Policy. This vulnerability has been patched in versions 2.40.5 and 2.38.3.

Record
EUVD-2023-2909
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Updated
2026-11-03
GitHub AdvisoriesGHSA-7h8m-vrxx-vr4m 7.3

ZITADEL race condition in lockout policy execution

Impact

ZITADEL provides administrators the possibility to define a Lockout Policy with a maximum amount of failed password check attempts. On every failed password check, the amount of failed checks is compared against the configured maximum. Exceeding the limit, will lock the user and prevent further authentication.

In the affected implementation it was possible for an attacker to start multiple parallel password checks, giving him the possibility to try out more combinations than configured in the Lockout Policy.

Patches

2.x versions are fixed on >= 2.40.5 2.38.x versions are fixed on >= 2.38.3

Workarounds

There is no workaround since a patch is already available.

References

None

Questions

If you have any questions or comments about this advisory, please email us at [email protected]

Record
GHSA-7h8m-vrxx-vr4m
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-362
Updated
2026-11-02
NVD 7.3

ZITADEL provides identity infrastructure. ZITADEL provides administrators the possibility to define a Lockout Policy with a maximum amount of failed password check attempts. On every failed password check, the amount of failed checks is compared against the configured maximum. Exceeding the limit, will lock the user and prevent further authentication. In the affected implementation it was possible for an attacker to start multiple parallel password checks, giving him the possibility to try out more combinations than configured in the Lockout Policy. This vulnerability has been patched in versions 2.40.5 and 2.38.3.

Record
CVE-2023-47111
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS 3.1
3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-362
Updated
2026-11-02
OSV 7.3

ZITADEL race condition in lockout policy execution

ZITADEL provides identity infrastructure. ZITADEL provides administrators the possibility to define a Lockout Policy with a maximum amount of failed password check attempts. On every failed password check, the amount of failed checks is compared against the configured maximum. Exceeding the limit, will lock the user and prevent further authentication. In the affected implementation it was possible for an attacker to start multiple parallel password checks, giving him the possibility to try out more combinations than configured in the Lockout Policy. This vulnerability has been patched in versions 2.40.5 and 2.38.3.

Record
CVE-2023-47111
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-362
Updated
2026-11-02
OSVGHSA-7h8m-vrxx-vr4m 7.3

ZITADEL race condition in lockout policy execution

Impact

ZITADEL provides administrators the possibility to define a Lockout Policy with a maximum amount of failed password check attempts. On every failed password check, the amount of failed checks is compared against the configured maximum. Exceeding the limit, will lock the user and prevent further authentication.

In the affected implementation it was possible for an attacker to start multiple parallel password checks, giving him the possibility to try out more combinations than configured in the Lockout Policy.

Patches

2.x versions are fixed on >= 2.40.5 2.38.x versions are fixed on >= 2.38.3

Workarounds

There is no workaround since a patch is already available.

References

None

Questions

If you have any questions or comments about this advisory, please email us at [email protected]

Record
GHSA-7h8m-vrxx-vr4m
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-362
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/zitadel/zitadel
Go
2.39.0 up to 2.40.5
2.40.5
github.com/zitadel/zitadel
Go
before 2.38.3
2.38.3

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-47111 is a high vulnerability (CVSS 7.3) in Zitadel, published November 8, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.52%, the 44th percentile. Fixed in github.com/zitadel/zitadel 2.40.5.

References

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