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TI-2026-39514 Aliases CVE-2026-54693GHSA-jq8w-8q2f-ffm9

ZITADEL Users Can Self-Verify Email/Phone via API

Priority LOW 36CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.

Summary

ZITADEL is an open source identity management platform. From 2.43.0 through 2.71.19, from 3.0.0 until 3.4.11, and from 4.0.0 until 4.15.1, the email and phone self-management API paths in internal/command/user_v2_email.go, internal/command/user_v2_phone.go, and internal/command/user_v2_human.go allowed users to request returned verification codes without the required permission, allowing users to claim ownership of email addresses or phone numbers they do not control and bypass email-based or phone-based security policies. This issue is fixed in versions 3.4.11 and 4.15.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00578 47th percentileScored 2026-11-07
Fix Fixed zitadel (zitadel): 3.4.11, 4.15.1github.com/zitadel/zitadel (Go): 1.80.0-v2.20.0.20260608144108-ed09b3df7f43

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
zitadelzitadel2.43.0 – 2.71.19; 3.0.0-rc.1 to before 3.4.11; 4.0.0-rc.1 to before 4.15.13.4.11, 4.15.1Patch availableCNA
—github.com/zitadel/zitadel (Go)4.0.0 and later—No fix listedGHSA-jq8w-8q2f-ffm9
—github.com/zitadel/zitadel (Go)2.43.0 and later—No fix listedGHSA-jq8w-8q2f-ffm9
—github.com/zitadel/zitadel (Go)before 1.80.0-v2.20.0.20260608144108-ed09b3df7f431.80.0-v2.20.0.20260608144108-ed09b3df7f43Patch availableGHSA-jq8w-8q2f-ffm9
  • zitadel Vendorzitadel Affected 2.43.0 – 2.71.19; 3.0.0-rc.1 to before 3.4.11; 4.0.0-rc.1 to before 4.15.1 Fixed in 3.4.11, 4.15.1 Patch available CNA
  • github.com/zitadel/zitadel (Go) Vendor— Affected 4.0.0 and later Fixed in — No fix listed GHSA-jq8w-8q2f-ffm9
  • github.com/zitadel/zitadel (Go) Vendor— Affected 2.43.0 and later Fixed in — No fix listed GHSA-jq8w-8q2f-ffm9
  • github.com/zitadel/zitadel (Go) Vendor— Affected before 1.80.0-v2.20.0.20260608144108-ed09b3df7f43 Fixed in 1.80.0-v2.20.0.20260608144108-ed09b3df7f43 Patch available GHSA-jq8w-8q2f-ffm9

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*——zitadel
  • cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* Versions — — ·zitadel

Remediation

  • Fix · CNA zitadel (zitadel) Fixed in 3.4.11, 4.15.1
  • Fix · GHSA-jq8w-8q2f-ffm9 github.com/zitadel/zitadel (Go) Fixed in 1.80.0-v2.20.0.20260608144108-ed09b3df7f43 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54693
  2. 2026-10-03 Alias added: GHSA-jq8w-8q2f-ffm9

References

Other 7

  • TI-2024-26607 ZITADEL Vulnerable to Session Information Leakage CVSS 3.1MEDIUM 6.5
  • TI-2026-67551 ZITADEL before 4.16.2 Account Pre-Hijacking via Forged External IdP Callback CVSS 4.0CRITICAL 9.3
  • TI-2026-67543 ZITADEL before 4.17.3 Account Takeover via External IdP Linking CVSS 4.0CRITICAL 9.3
  • TI-2025-41253 ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login CVSS 3.1CRITICAL 9.3
  • TI-2025-39554 Zitadel Bypass Second Authentication Factor CVSS 4.0HIGH 8.7
  • TI-2026-82647 ZITADEL Login V2 flaw lets attackers approve device authorizations CVSS 4.0HIGH 8.6
See all 77 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences