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CVE-2026-56666

ZITADEL: Auto-linking by email: IdP-side email verification is not checked

4.8 MediumFix available

ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external identity provider handler checks that the local user's email is verified but does not verify that the external IdP confirmed ownership of the same email before auto-linking by email, allowing a permissive provider account with a victim email address to be linked to the victim's local account. This issue is fixed in version 4.15.3.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.29%Up 0.1 points since Jul 11, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.8

ZITADEL: Auto-linking by email: IdP-side email verification is not checked

ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external identity provider handler checks that the local user's email is verified but does not verify that the external IdP confirmed ownership of the same email before auto-linking by email, allowing a permissive provider account with a victim email address to be linked to the victim's local account. This issue is fixed in version 4.15.3.

Record
CVE-2026-56666
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-287
Updated
2026-11-02
EUVDEUVD-2026-42966 4.8

ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external identity provider handler checks that the local user's email is verified but does not verify that the external IdP confirmed ownership of the same email before auto-linking by email, allowing a permissive provider account with a victim email address to be linked to the victim's local account. This issue is fixed in version 4.15.3.

Record
EUVD-2026-42966
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-992q-9gwp-7r79 4.8

ZITADEL: Auto-linking by email: IdP-side email verification is not checked

Summary

A flaw in the external identity provider handler allows unauthorized account linking to occur under specific administrative configurations. When auto-linking by email is enabled, ZITADEL checks that the local user's email is verified, but does not explicitly cross-check whether the incoming external identity provider (IdP) also verified that email address upstream.

Impact

When a user logs in via an external identity provider, the system can automatically link them to an existing local account if their email addresses match. However, because the system fails to check if the external provider actually verified ownership of that email, a security risk is introduced if a loose or public provider is connected.

If an administrator enables email auto-linking for an external identity provider that allows anyone to sign up with an unverified email address, an attacker can exploit this behavior. By registering an account on that permissive provider using a victim's email address and logging in, the system will automatically link the attacker's federated identity to the victim's legitimate local account. This allows the attacker to log into the victim's account without requiring any interaction or confirmation from the victim.

This issue represents a configuration-dependent anomaly rather than an unconditioned attack vector. Because the scenario relies entirely on an explicit administrative choice to trust a permissive external directory and link accounts automatically based purely on email strings, the practical operational risk is classified as Medium.

Affected Versions

Systems running one of the following versions are affected:

  • 4.x: 4.0.0 through 4.15.2 (including RC versions)
  • 3.x: 3.0.0 through 3.4.12 (including RC versions)

Patches

The vulnerability has been addressed in the latest releases. The patch resolves the issue by requiring that the external identity provider's email verification status is explicitly validated before allowing any automatic linking logic to proceed.

Workarounds

If an immediate upgrade is not possible, implement one of the following mitigations:

  • Disable auto-linking by email entirely by setting the option to AUTO_LINKING_OPTION_UNSPECIFIED on corresponding identity providers.
  • Audit external IdP configurations and restrict email auto-linking strictly to trusted enterprise identity directories (e.g., corporate Okta or Azure AD) where email verification is strictly enforced and managed by corporate policy.

Questions

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

Credits

Thanks to Android-Login-Analysis and Alejandro Yadlin for reporting this vulnerability.

Record
GHSA-992q-9gwp-7r79
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-287
Updated
2026-11-02
NVD 4.8

ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external identity provider handler checks that the local user's email is verified but does not verify that the external IdP confirmed ownership of the same email before auto-linking by email, allowing a permissive provider account with a victim email address to be linked to the victim's local account. This issue is fixed in version 4.15.3.

Record
CVE-2026-56666
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-287
Updated
2026-11-02
OSV 4.8

ZITADEL: Auto-linking by email: IdP-side email verification is not checked

ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external identity provider handler checks that the local user's email is verified but does not verify that the external IdP confirmed ownership of the same email before auto-linking by email, allowing a permissive provider account with a victim email address to be linked to the victim's local account. This issue is fixed in version 4.15.3.

Record
CVE-2026-56666
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-287
Updated
2026-11-02
OSVGHSA-992q-9gwp-7r79 4.8

ZITADEL: Auto-linking by email: IdP-side email verification is not checked

Summary

A flaw in the external identity provider handler allows unauthorized account linking to occur under specific administrative configurations. When auto-linking by email is enabled, ZITADEL checks that the local user's email is verified, but does not explicitly cross-check whether the incoming external identity provider (IdP) also verified that email address upstream.

Impact

When a user logs in via an external identity provider, the system can automatically link them to an existing local account if their email addresses match. However, because the system fails to check if the external provider actually verified ownership of that email, a security risk is introduced if a loose or public provider is connected.

If an administrator enables email auto-linking for an external identity provider that allows anyone to sign up with an unverified email address, an attacker can exploit this behavior. By registering an account on that permissive provider using a victim's email address and logging in, the system will automatically link the attacker's federated identity to the victim's legitimate local account. This allows the attacker to log into the victim's account without requiring any interaction or confirmation from the victim.

This issue represents a configuration-dependent anomaly rather than an unconditioned attack vector. Because the scenario relies entirely on an explicit administrative choice to trust a permissive external directory and link accounts automatically based purely on email strings, the practical operational risk is classified as Medium.

Affected Versions

Systems running one of the following versions are affected:

  • 4.x: 4.0.0 through 4.15.2 (including RC versions)
  • 3.x: 3.0.0 through 3.4.12 (including RC versions)

Patches

The vulnerability has been addressed in the latest releases. The patch resolves the issue by requiring that the external identity provider's email verification status is explicitly validated before allowing any automatic linking logic to proceed.

Workarounds

If an immediate upgrade is not possible, implement one of the following mitigations:

  • Disable auto-linking by email entirely by setting the option to AUTO_LINKING_OPTION_UNSPECIFIED on corresponding identity providers.
  • Audit external IdP configurations and restrict email auto-linking strictly to trusted enterprise identity directories (e.g., corporate Okta or Azure AD) where email verification is strictly enforced and managed by corporate policy.

Questions

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

Credits

Thanks to Android-Login-Analysis and Alejandro Yadlin for reporting this vulnerability.

Record
GHSA-992q-9gwp-7r79
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-287
Updated
2026-11-02
Show 4 moreShow less
OSVGO-2026-6470 No score

ZITADEL: Auto-linking by email: IdP-side email verification is not checked in github.com/zitadel/zitadel

ZITADEL: Auto-linking by email: IdP-side email verification is not checked in github.com/zitadel/zitadel.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/zitadel/zitadel before v4.15.3.

Record
GO-2026-6470
Updated
2026-11-02
OSVopenSUSE-SU-2026:21897-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

Changes for govulncheck-vulndb:

  • Update to version 0.0.20260916T180043 2026-09-16T18:00:43Z (jsc#PED-11136).

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-6348 CVE-2026-84304 GHSA-vp52-pcj8-j9qc
  • GO-2026-6356 CVE-2026-65959 GHSA-mhc4-g3wh-cw7m
  • GO-2026-6366 CVE-2026-61625 GHSA-8q3c-rjr9-xxrp
  • GO-2026-6372 CVE-2026-79921 GHSA-6c5v-hqjr-5xxp
  • GO-2026-6441 CVE-2026-84303 GHSA-qc2q-p7wx-3px3
  • GO-2026-6443 CVE-2026-84445 GHSA-2v4p-qf9q-27wj
  • GO-2026-6444 CVE-2026-53495 GHSA-7jxh-36q5-gcqv
  • GO-2026-6445 CVE-2025-58363 GHSA-c23q-fw86-9h5x
  • GO-2026-6446 CVE-2025-24978 GHSA-g8rh-fjm6-h2h9
  • GO-2026-6447 CVE-2025-24979 GHSA-pqqc-8v73-9gg2
  • GO-2026-6448 CVE-2026-59185 GHSA-cp3j-m783-3ph5
  • GO-2026-6449 GHSA-hxjg-93wc-h8p8
  • GO-2026-6450 CVE-2026-59172 GHSA-m835-3cm9-rggg
  • GO-2026-6451 CVE-2026-59157 GHSA-v25g-mvwr-f5fp
  • GO-2026-6452 CVE-2026-59162 GHSA-fx5j-qcqg-grpf
  • GO-2026-6453 CVE-2026-59161 GHSA-q5j5-6p94-4gwc
  • GO-2026-6454 CVE-2026-88012 GHSA-7ghq-v6jf-g56c
  • GO-2026-6455 CVE-2026-88011 GHSA-rf44-j88r-hh8c
  • GO-2026-6456 CVE-2026-88045 GHSA-2p48-j3qc-rx9f
  • GO-2026-6457 CVE-2026-88046 GHSA-38xv-hf3p-h7mq
  • GO-2026-6458 CVE-2026-88017 GHSA-c476-6w5q-jw77
  • GO-2026-6459 CVE-2026-88016 GHSA-f8g7-2xjc-7mfh
  • GO-2026-6460 CVE-2026-88044 GHSA-p569-5gjg-9cmj
  • GO-2026-6461 CVE-2026-88015 GHSA-p6m2-r3w9-mpxw
  • GO-2026-6462 CVE-2026-88018 GHSA-xwwr-4h3p-r22c
  • GO-2026-6463 CVE-2026-88013 GHSA-486v-q2wf-fp2r
  • GO-2026-6464 CVE-2026-88014 GHSA-66hp-wgxq-6f5q
  • GO-2026-6465 CVE-2026-88009 GHSA-f52w-8j3h-j724
  • GO-2026-6466 CVE-2026-88007 GHSA-qqjf-53cj-pwvv
  • GO-2026-6467 CVE-2026-88004 GHSA-v67p-phpq-fc8x
  • GO-2026-6468 CVE-2026-88008 GHSA-w4v4-9rw7-5326
  • GO-2026-6469 CVE-2026-56665 GHSA-v77h-2w3m-94hx
  • GO-2026-6470 CVE-2026-56666 GHSA-992q-9gwp-7r79
  • GO-2026-6473 CVE-2026-76081 GHSA-v859-c572-qh5p
  • GO-2026-6474 CVE-2026-56668 GHSA-vrh8-c9cm-wh8v
  • Update to version 0.0.20260910T144842 2026-09-10T14:48:42Z.
  • GO-2026-6302 GHSA-mf7q-r4rv-jv94
  • GO-2026-6343 CVE-2026-25782 GHSA-qm72-8prh-g92x
  • GO-2026-6344 CVE-2026-26292 GHSA-rc56-rj3f-xggf
  • GO-2026-6345 CVE-2026-27779 GHSA-v8f2-2ghq-9whv
  • GO-2026-6346 CVE-2026-27780 GHSA-vhq7-fwwh-7hjf
  • GO-2026-6347 CVE-2026-27660 GHSA-x92v-f5gc-r34v
  • GO-2026-6350 CVE-2026-59832 GHSA-275h-v5h9-vr82
  • GO-2026-6351 CVE-2026-72920 GHSA-2v6v-25fm-p4fg
  • GO-2026-6353 CVE-2026-59834 GHSA-h89q-4j2h-7h88
  • GO-2026-6357 CVE-2026-73667 GHSA-2mw5-23gm-pccq
  • GO-2026-6358 CVE-2026-73841 GHSA-52gf-6rpq-fgmx
  • GO-2026-6359 CVE-2026-67446 GHSA-75mr-qw9x-3r39
  • GO-2026-6360 CVE-2026-73840 GHSA-c5f6-2rm9-2w8g
  • GO-2026-6361 CVE-2026-72921 GHSA-gv5w-hfx8-8cwq
  • GO-2026-6362 CVE-2026-73843 GHSA-qh9r-j7rp-4x2m
  • GO-2026-6363 CVE-2026-67445 GHSA-w878-pj84-3j5v
  • GO-2026-6364 GHSA-99rq-75j6-5j9f
  • GO-2026-6365 GHSA-gw25-m53r-qh88
  • GO-2026-6367 CVE-2026-56743 GHSA-fm8w-2m5w-9j7r
  • GO-2026-6368 CVE-2026-75602 GHSA-h6cj-26g5-67fv
  • GO-2026-6369 CVE-2026-73232 GHSA-jcvh-xf52-2cwm
  • GO-2026-6370 CVE-2026-73292 GHSA-8cj9-r88m-8945
  • GO-2026-6371 CVE-2026-73293 GHSA-cxvf-gvfq-36w2
  • GO-2026-6373 CVE-2026-69086 GHSA-7hm9-v7vf-7g4w
  • GO-2026-6374 CVE-2026-69083 GHSA-fph3-ghq9-vw66
  • GO-2026-6377 CVE-2026-69084 GHSA-vh22-h7hf-www7
  • GO-2026-6379 CVE-2026-68586 GHSA-36v8-mpjm-8j5r
  • GO-2026-6381 CVE-2026-68587 GHSA-69mh-gvh4-8gp7
  • GO-2026-6382 CVE-2026-68584 GHSA-7j72-f6wg-cxw6
  • GO-2026-6384 CVE-2026-68585 GHSA-pm3w-vxp9-ccwc
  • GO-2026-6386 CVE-2026-72809 GHSA-3mp7-4rh5-jrv9
  • GO-2026-6387 CVE-2026-72805 GHSA-67x2-mq63-v9vm
  • GO-2026-6388 CVE-2026-72806 GHSA-6mcf-g667-w3qv
  • GO-2026-6392 CVE-2026-72801 GHSA-8x84-r2ff-h8pq
  • GO-2026-6395 CVE-2026-72800 GHSA-5fhr-f75j-8wr9
  • GO-2026-6398 CVE-2026-72802 GHSA-jv8v-xq2h-657v
  • GO-2026-6400 CVE-2026-72810 GHSA-mw8r-mw84-88v2
  • GO-2026-6402 CVE-2026-72811 GHSA-q2vg-7qgx-x5fc
  • GO-2026-6404 CVE-2026-72803…
Record
openSUSE-SU-2026:21897-1
Updated
2026-11-02
OSVSUSE-SU-2026:23855-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

Changes for govulncheck-vulndb:

  • Update to version 0.0.20260916T180043 2026-09-16T18:00:43Z (jsc#PED-11136).

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-6348 CVE-2026-84304 GHSA-vp52-pcj8-j9qc
  • GO-2026-6356 CVE-2026-65959 GHSA-mhc4-g3wh-cw7m
  • GO-2026-6366 CVE-2026-61625 GHSA-8q3c-rjr9-xxrp
  • GO-2026-6372 CVE-2026-79921 GHSA-6c5v-hqjr-5xxp
  • GO-2026-6441 CVE-2026-84303 GHSA-qc2q-p7wx-3px3
  • GO-2026-6443 CVE-2026-84445 GHSA-2v4p-qf9q-27wj
  • GO-2026-6444 CVE-2026-53495 GHSA-7jxh-36q5-gcqv
  • GO-2026-6445 CVE-2025-58363 GHSA-c23q-fw86-9h5x
  • GO-2026-6446 CVE-2025-24978 GHSA-g8rh-fjm6-h2h9
  • GO-2026-6447 CVE-2025-24979 GHSA-pqqc-8v73-9gg2
  • GO-2026-6448 CVE-2026-59185 GHSA-cp3j-m783-3ph5
  • GO-2026-6449 GHSA-hxjg-93wc-h8p8
  • GO-2026-6450 CVE-2026-59172 GHSA-m835-3cm9-rggg
  • GO-2026-6451 CVE-2026-59157 GHSA-v25g-mvwr-f5fp
  • GO-2026-6452 CVE-2026-59162 GHSA-fx5j-qcqg-grpf
  • GO-2026-6453 CVE-2026-59161 GHSA-q5j5-6p94-4gwc
  • GO-2026-6454 CVE-2026-88012 GHSA-7ghq-v6jf-g56c
  • GO-2026-6455 CVE-2026-88011 GHSA-rf44-j88r-hh8c
  • GO-2026-6456 CVE-2026-88045 GHSA-2p48-j3qc-rx9f
  • GO-2026-6457 CVE-2026-88046 GHSA-38xv-hf3p-h7mq
  • GO-2026-6458 CVE-2026-88017 GHSA-c476-6w5q-jw77
  • GO-2026-6459 CVE-2026-88016 GHSA-f8g7-2xjc-7mfh
  • GO-2026-6460 CVE-2026-88044 GHSA-p569-5gjg-9cmj
  • GO-2026-6461 CVE-2026-88015 GHSA-p6m2-r3w9-mpxw
  • GO-2026-6462 CVE-2026-88018 GHSA-xwwr-4h3p-r22c
  • GO-2026-6463 CVE-2026-88013 GHSA-486v-q2wf-fp2r
  • GO-2026-6464 CVE-2026-88014 GHSA-66hp-wgxq-6f5q
  • GO-2026-6465 CVE-2026-88009 GHSA-f52w-8j3h-j724
  • GO-2026-6466 CVE-2026-88007 GHSA-qqjf-53cj-pwvv
  • GO-2026-6467 CVE-2026-88004 GHSA-v67p-phpq-fc8x
  • GO-2026-6468 CVE-2026-88008 GHSA-w4v4-9rw7-5326
  • GO-2026-6469 CVE-2026-56665 GHSA-v77h-2w3m-94hx
  • GO-2026-6470 CVE-2026-56666 GHSA-992q-9gwp-7r79
  • GO-2026-6473 CVE-2026-76081 GHSA-v859-c572-qh5p
  • GO-2026-6474 CVE-2026-56668 GHSA-vrh8-c9cm-wh8v
  • Update to version 0.0.20260910T144842 2026-09-10T14:48:42Z.
  • GO-2026-6302 GHSA-mf7q-r4rv-jv94
  • GO-2026-6343 CVE-2026-25782 GHSA-qm72-8prh-g92x
  • GO-2026-6344 CVE-2026-26292 GHSA-rc56-rj3f-xggf
  • GO-2026-6345 CVE-2026-27779 GHSA-v8f2-2ghq-9whv
  • GO-2026-6346 CVE-2026-27780 GHSA-vhq7-fwwh-7hjf
  • GO-2026-6347 CVE-2026-27660 GHSA-x92v-f5gc-r34v
  • GO-2026-6350 CVE-2026-59832 GHSA-275h-v5h9-vr82
  • GO-2026-6351 CVE-2026-72920 GHSA-2v6v-25fm-p4fg
  • GO-2026-6353 CVE-2026-59834 GHSA-h89q-4j2h-7h88
  • GO-2026-6357 CVE-2026-73667 GHSA-2mw5-23gm-pccq
  • GO-2026-6358 CVE-2026-73841 GHSA-52gf-6rpq-fgmx
  • GO-2026-6359 CVE-2026-67446 GHSA-75mr-qw9x-3r39
  • GO-2026-6360 CVE-2026-73840 GHSA-c5f6-2rm9-2w8g
  • GO-2026-6361 CVE-2026-72921 GHSA-gv5w-hfx8-8cwq
  • GO-2026-6362 CVE-2026-73843 GHSA-qh9r-j7rp-4x2m
  • GO-2026-6363 CVE-2026-67445 GHSA-w878-pj84-3j5v
  • GO-2026-6364 GHSA-99rq-75j6-5j9f
  • GO-2026-6365 GHSA-gw25-m53r-qh88
  • GO-2026-6367 CVE-2026-56743 GHSA-fm8w-2m5w-9j7r
  • GO-2026-6368 CVE-2026-75602 GHSA-h6cj-26g5-67fv
  • GO-2026-6369 CVE-2026-73232 GHSA-jcvh-xf52-2cwm
  • GO-2026-6370 CVE-2026-73292 GHSA-8cj9-r88m-8945
  • GO-2026-6371 CVE-2026-73293 GHSA-cxvf-gvfq-36w2
  • GO-2026-6373 CVE-2026-69086 GHSA-7hm9-v7vf-7g4w
  • GO-2026-6374 CVE-2026-69083 GHSA-fph3-ghq9-vw66
  • GO-2026-6377 CVE-2026-69084 GHSA-vh22-h7hf-www7
  • GO-2026-6379 CVE-2026-68586 GHSA-36v8-mpjm-8j5r
  • GO-2026-6381 CVE-2026-68587 GHSA-69mh-gvh4-8gp7
  • GO-2026-6382 CVE-2026-68584 GHSA-7j72-f6wg-cxw6
  • GO-2026-6384 CVE-2026-68585 GHSA-pm3w-vxp9-ccwc
  • GO-2026-6386 CVE-2026-72809 GHSA-3mp7-4rh5-jrv9
  • GO-2026-6387 CVE-2026-72805 GHSA-67x2-mq63-v9vm
  • GO-2026-6388 CVE-2026-72806 GHSA-6mcf-g667-w3qv
  • GO-2026-6392 CVE-2026-72801 GHSA-8x84-r2ff-h8pq
  • GO-2026-6395 CVE-2026-72800 GHSA-5fhr-f75j-8wr9
  • GO-2026-6398 CVE-2026-72802 GHSA-jv8v-xq2h-657v
  • GO-2026-6400 CVE-2026-72810 GHSA-mw8r-mw84-88v2
  • GO-2026-6402 CVE-2026-72811 GHSA-q2vg-7qgx-x5fc
  • GO-2026-6404 CVE-2026-72803…
Record
SUSE-SU-2026:23855-1
Updated
2026-11-02
OSVSUSE-SU-2026:23863-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

Changes for govulncheck-vulndb:

  • Update to version 0.0.20260916T180043 2026-09-16T18:00:43Z (jsc#PED-11136).

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-6348 CVE-2026-84304 GHSA-vp52-pcj8-j9qc
  • GO-2026-6356 CVE-2026-65959 GHSA-mhc4-g3wh-cw7m
  • GO-2026-6366 CVE-2026-61625 GHSA-8q3c-rjr9-xxrp
  • GO-2026-6372 CVE-2026-79921 GHSA-6c5v-hqjr-5xxp
  • GO-2026-6441 CVE-2026-84303 GHSA-qc2q-p7wx-3px3
  • GO-2026-6443 CVE-2026-84445 GHSA-2v4p-qf9q-27wj
  • GO-2026-6444 CVE-2026-53495 GHSA-7jxh-36q5-gcqv
  • GO-2026-6445 CVE-2025-58363 GHSA-c23q-fw86-9h5x
  • GO-2026-6446 CVE-2025-24978 GHSA-g8rh-fjm6-h2h9
  • GO-2026-6447 CVE-2025-24979 GHSA-pqqc-8v73-9gg2
  • GO-2026-6448 CVE-2026-59185 GHSA-cp3j-m783-3ph5
  • GO-2026-6449 GHSA-hxjg-93wc-h8p8
  • GO-2026-6450 CVE-2026-59172 GHSA-m835-3cm9-rggg
  • GO-2026-6451 CVE-2026-59157 GHSA-v25g-mvwr-f5fp
  • GO-2026-6452 CVE-2026-59162 GHSA-fx5j-qcqg-grpf
  • GO-2026-6453 CVE-2026-59161 GHSA-q5j5-6p94-4gwc
  • GO-2026-6454 CVE-2026-88012 GHSA-7ghq-v6jf-g56c
  • GO-2026-6455 CVE-2026-88011 GHSA-rf44-j88r-hh8c
  • GO-2026-6456 CVE-2026-88045 GHSA-2p48-j3qc-rx9f
  • GO-2026-6457 CVE-2026-88046 GHSA-38xv-hf3p-h7mq
  • GO-2026-6458 CVE-2026-88017 GHSA-c476-6w5q-jw77
  • GO-2026-6459 CVE-2026-88016 GHSA-f8g7-2xjc-7mfh
  • GO-2026-6460 CVE-2026-88044 GHSA-p569-5gjg-9cmj
  • GO-2026-6461 CVE-2026-88015 GHSA-p6m2-r3w9-mpxw
  • GO-2026-6462 CVE-2026-88018 GHSA-xwwr-4h3p-r22c
  • GO-2026-6463 CVE-2026-88013 GHSA-486v-q2wf-fp2r
  • GO-2026-6464 CVE-2026-88014 GHSA-66hp-wgxq-6f5q
  • GO-2026-6465 CVE-2026-88009 GHSA-f52w-8j3h-j724
  • GO-2026-6466 CVE-2026-88007 GHSA-qqjf-53cj-pwvv
  • GO-2026-6467 CVE-2026-88004 GHSA-v67p-phpq-fc8x
  • GO-2026-6468 CVE-2026-88008 GHSA-w4v4-9rw7-5326
  • GO-2026-6469 CVE-2026-56665 GHSA-v77h-2w3m-94hx
  • GO-2026-6470 CVE-2026-56666 GHSA-992q-9gwp-7r79
  • GO-2026-6473 CVE-2026-76081 GHSA-v859-c572-qh5p
  • GO-2026-6474 CVE-2026-56668 GHSA-vrh8-c9cm-wh8v
  • Update to version 0.0.20260910T144842 2026-09-10T14:48:42Z.
  • GO-2026-6302 GHSA-mf7q-r4rv-jv94
  • GO-2026-6343 CVE-2026-25782 GHSA-qm72-8prh-g92x
  • GO-2026-6344 CVE-2026-26292 GHSA-rc56-rj3f-xggf
  • GO-2026-6345 CVE-2026-27779 GHSA-v8f2-2ghq-9whv
  • GO-2026-6346 CVE-2026-27780 GHSA-vhq7-fwwh-7hjf
  • GO-2026-6347 CVE-2026-27660 GHSA-x92v-f5gc-r34v
  • GO-2026-6350 CVE-2026-59832 GHSA-275h-v5h9-vr82
  • GO-2026-6351 CVE-2026-72920 GHSA-2v6v-25fm-p4fg
  • GO-2026-6353 CVE-2026-59834 GHSA-h89q-4j2h-7h88
  • GO-2026-6357 CVE-2026-73667 GHSA-2mw5-23gm-pccq
  • GO-2026-6358 CVE-2026-73841 GHSA-52gf-6rpq-fgmx
  • GO-2026-6359 CVE-2026-67446 GHSA-75mr-qw9x-3r39
  • GO-2026-6360 CVE-2026-73840 GHSA-c5f6-2rm9-2w8g
  • GO-2026-6361 CVE-2026-72921 GHSA-gv5w-hfx8-8cwq
  • GO-2026-6362 CVE-2026-73843 GHSA-qh9r-j7rp-4x2m
  • GO-2026-6363 CVE-2026-67445 GHSA-w878-pj84-3j5v
  • GO-2026-6364 GHSA-99rq-75j6-5j9f
  • GO-2026-6365 GHSA-gw25-m53r-qh88
  • GO-2026-6367 CVE-2026-56743 GHSA-fm8w-2m5w-9j7r
  • GO-2026-6368 CVE-2026-75602 GHSA-h6cj-26g5-67fv
  • GO-2026-6369 CVE-2026-73232 GHSA-jcvh-xf52-2cwm
  • GO-2026-6370 CVE-2026-73292 GHSA-8cj9-r88m-8945
  • GO-2026-6371 CVE-2026-73293 GHSA-cxvf-gvfq-36w2
  • GO-2026-6373 CVE-2026-69086 GHSA-7hm9-v7vf-7g4w
  • GO-2026-6374 CVE-2026-69083 GHSA-fph3-ghq9-vw66
  • GO-2026-6377 CVE-2026-69084 GHSA-vh22-h7hf-www7
  • GO-2026-6379 CVE-2026-68586 GHSA-36v8-mpjm-8j5r
  • GO-2026-6381 CVE-2026-68587 GHSA-69mh-gvh4-8gp7
  • GO-2026-6382 CVE-2026-68584 GHSA-7j72-f6wg-cxw6
  • GO-2026-6384 CVE-2026-68585 GHSA-pm3w-vxp9-ccwc
  • GO-2026-6386 CVE-2026-72809 GHSA-3mp7-4rh5-jrv9
  • GO-2026-6387 CVE-2026-72805 GHSA-67x2-mq63-v9vm
  • GO-2026-6388 CVE-2026-72806 GHSA-6mcf-g667-w3qv
  • GO-2026-6392 CVE-2026-72801 GHSA-8x84-r2ff-h8pq
  • GO-2026-6395 CVE-2026-72800 GHSA-5fhr-f75j-8wr9
  • GO-2026-6398 CVE-2026-72802 GHSA-jv8v-xq2h-657v
  • GO-2026-6400 CVE-2026-72810 GHSA-mw8r-mw84-88v2
  • GO-2026-6402 CVE-2026-72811 GHSA-q2vg-7qgx-x5fc
  • GO-2026-6404 CVE-2026-72803…
Record
SUSE-SU-2026:23863-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/zitadel/zitadel
Go
 before 4.15.3
4.15.3
github.com/zitadel/zitadel
Go
 All versions None known
govulncheck-vulndb
SUSE:Linux Enterprise Server 16.0
From an advisory covering 91 CVEs
 before 0.0.20260916T180043-160000.1.1
0.0.20260916T180043-160000.1.1
govulncheck-vulndb
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 91 CVEs
 before 0.0.20260916T180043-160000.1.1
0.0.20260916T180043-160000.1.1
govulncheck-vulndb
openSUSE:Leap 16.0
From an advisory covering 91 CVEs
 before 0.0.20260916T180043-160000.1.1
0.0.20260916T180043-160000.1.1

History

History
RecordedChangedSources
affected, facts
affected, aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2026-56666 is a medium vulnerability (CVSS 4.8) in Zitadel, published July 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. Fixed in github.com/zitadel/zitadel 4.15.3.

References

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Left out here: the rest of 3 source descriptions. The JSON record has them.

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