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Medium 5.3Published Jan 15, 2026

CVE-2026-23511ZITADEL is an open source identity management platform.

Updated under an hour ago ()

Does this affect you?

It affects zitadel. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

ZITADEL is an open source identity management platform. Prior to 4.9.1 and 3.4.6, a user enumeration vulnerability has been discovered in Zitadel's login interfaces. An unauthenticated attacker can exploit this flaw to confirm the existence of valid user accounts by iterating through usernames and userIDs. This vulnerability is fixed in 4.9.1 and 3.4.6.

CVSS
5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE)
CWE-204
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Analyzed
Record last updated
Jun 17, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
zitadel zitadel
zitadel:zitadel
from 2.0.0 through 2.71.19; from 3.0.0 before 3.4.6; from 4.0.0 before 4.9.1
NVD

References

  • patch
  • patch
  • release-notes
  • release-notes
  • third-party-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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