CVE-2026-55672

HIGHPre-NVD 7.47.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (36th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
7.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow, allowing intercepted grants or refresh tokens to be exchanged under a different client. This issue is fixed in versions 3.4.12 and 4.15.2.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
33
EG Risk 33/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity74% × 45%
The EG Score, 7.4 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 18, 2026

Last Modified

July 10, 2026

Advisory Details (5)

Auto-updated Jul 10, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub advisoryMentions a patch (unverified)

Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation) · Advisory · zitadel/zitadel · GitHub

https://github.com/zitadel/zitadel/security/advisories/GHSA-xqxv-4jc2-x56x
GitHub release Patch Available

v4.15.2

Patch available: zitadel/zitadel v4.15.2

https://github.com/zitadel/zitadel/releases/tag/v4.15.2
GitHub release Patch Available

v3.4.12

Patch available: zitadel/zitadel v3.4.12

https://github.com/zitadel/zitadel/releases/tag/v3.4.12
GitHub commit

commit 5b1708e0e650 (zitadel/zitadel)

Fix landed in zitadel/zitadel commit 5b1708e0e650 — awaiting tagged release

https://github.com/zitadel/zitadel/commit/5b1708e0e650398f0ebc3341714f0798b0118917
GitHub commit

commit 562403079a98 (zitadel/zitadel)

Fix landed in zitadel/zitadel commit 562403079a98 — awaiting tagged release

https://github.com/zitadel/zitadel/commit/562403079a98cf2059cdac11865a45e2f285be71

Vendor Advisories for CVE-2026-55672(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/zitadel/zitadel—
  • every version up to 1.80.0-v2.20.0.20260616131956-0973b074b488: fixed in 1.80.0-v2.20.0.20260616131956-0973b074b488
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 32× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 123 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 23 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  4. 2026-10-12 15:55 UTCEG score recompute
  5. 2026-10-11 19:38 UTCEG score recompute
  6. 2026-10-11 16:54 UTCEG score recompute
  7. 2026-10-11 14:16 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  11. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  13. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  16. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  17. 2026-10-03 05:09 UTCOSV refresh
  18. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  19. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  20. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  21. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  22. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  23. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  24. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  25. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 34th percentile
Show 75 more
  1. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  2. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  3. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  4. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  6. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  7. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-09-14 02:22 UTCEG score recompute
  9. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  10. 2026-09-13 13:57 UTCEG score recompute
  11. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  12. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  13. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  16. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  18. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-08-30 21:11 UTCEG score recompute
  21. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  22. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  24. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  26. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  27. 2026-08-24 22:21 UTCEG score recompute
  28. 2026-08-23 03:35 UTCEG score recompute
  29. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  30. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  31. 2026-08-21 07:52 UTCEG score recompute
  32. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  33. 2026-08-20 08:11 UTCEG score recompute
  34. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  35. 2026-08-19 08:01 UTCEG score recompute
  36. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  37. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  38. 2026-08-16 20:47 UTCEG score recompute
  39. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  40. 2026-08-16 08:56 UTCEG score recompute
  41. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  42. 2026-08-15 09:07 UTCEG score recompute
  43. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  44. 2026-08-14 06:47 UTCEG score recompute
  45. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  46. 2026-08-12 16:38 UTCEG score recompute
  47. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  48. 2026-08-11 16:58 UTCEG score recompute
  49. 2026-08-11 05:15 UTCEG score recompute
  50. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  51. 2026-08-09 16:04 UTCEG score recompute
  52. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  53. 2026-08-09 04:21 UTCEG score recompute
  54. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  55. 2026-08-07 17:10 UTCEG score recompute
  56. 2026-08-06 17:36 UTCEG score recompute
  57. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  58. 2026-08-06 05:52 UTCEG score recompute
  59. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  60. 2026-08-04 15:24 UTCEG score recompute
  61. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  62. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  63. 2026-08-03 21:18 UTCEG score recompute
  64. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  65. 2026-08-02 09:47 UTCEG score recompute
  66. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  67. 2026-08-01 10:17 UTCEG score recompute
  68. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  69. 2026-07-30 22:33 UTCEG score recompute
  70. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  71. 2026-07-30 03:12 UTCEG score recompute
  72. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  73. 2026-07-29 01:48 UTCEG score recompute
  74. 2026-07-28 15:37 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  75. 2026-07-27 22:15 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-55672?
CVE-2026-55672 is a high-severity vulnerability; its CVE record was published on June 18, 2026. ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow, allowing intercepted grants or refresh…
When was the CVE record for CVE-2026-55672 published?
The CVE record for CVE-2026-55672 was published on June 18, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 10, 2026; the record at its source may have been updated since.
Is CVE-2026-55672 actively exploited?
CVE-2026-55672 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-55672?
CVE-2026-55672 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-55672?
A fix for CVE-2026-55672 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-55672 are linked in the Vendor Advisories panel on this page.

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