CVE-2026-55670

LOWPre-NVD 2.32.3
EchelonGraph scoreMEDIUM confidence

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

This low-severity CVE scores 2.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (28th 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
2.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 2.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

ZITADEL is an open source identity management platform. Prior to 4.15.1, ZITADEL's event store validation can retain the original resource owner for a deleted user identifier, causing a later user recreated with the same identifier in another organization to be provisioned under the original organization and exposed to that organization's administrator. This issue is fixed in version 4.15.2.

CVSS v3
2.3
EG Score
2.3LOWmedium confidence
EG Risk
10
EG Risk 10/100

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)
Severity23% × 45%
The EG Score, 2.3 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
28th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

References (4)

Vendor Advisories for CVE-2026-55670(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-v2.20.0.20260615092437-6082e59d47c1: fixed in 1.80.0-v2.20.0.20260615092437-6082e59d47c1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 33× 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 96 of 105 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. 4 repeat rows among the latest 100 are merged into the row they repeat. The 9 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

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

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Frequently asked(5)

What is CVE-2026-55670?
CVE-2026-55670 is a low-severity vulnerability; its CVE record was published on June 18, 2026. ZITADEL is an open source identity management platform. Prior to 4.15.1, ZITADEL's event store validation can retain the original resource owner for a deleted user identifier, causing a later user recreated with the same identifier in another organization to be provisioned under the original…
When was the CVE record for CVE-2026-55670 published?
The CVE record for CVE-2026-55670 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-2026-55670 actively exploited?
CVE-2026-55670 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (28th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-55670?
CVE-2026-55670 has a CVSS base score of 2.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-55670?
A fix for CVE-2026-55670 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-55670 are linked in the Vendor Advisories panel on this page.

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