CVE-2026-119128

validatedZero produced an exploit or a check.

GHSA-84fg-x5h4-w8xv ↗EUVD-2026-113195 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
zitadel 4.0.0 - 4.19.4
fixed in 4.19.5
CWE-565 Reliance on Cookies without Validation and Integrity Checking
ETK-2026-2987Zero's internal tracking ID, independent of the CVE number., permanent identifier
+1h12mTTV
18mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal (cve.org) +0mcheck available+72magent stopped
0
+15min
+30min
+45min
+60min

description

ZITADEL Login V2 in versions 4.0.0 through 4.19.4 is affected by an authentication bypass. An unauthenticated attacker may establish an initial sign-in method and take over an account when that user has no authentication method configured.

mitigation

Upgrade ZITADEL to version 4.19.5 or later. Prioritize accounts without configured authentication methods until the upgrade is complete.

fixed in 4.19.5

check
available
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
deterministic
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
18m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-29 15:58Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–

outcome

Check only, differential: the check fires on the vulnerable build and is silent on the patched one.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-10-29 15:58Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-119128

{
  "etk_id": "ETK-2026-2987",
  "cve_id": "CVE-2026-119128",
  "display_id": "CVE-2026-119128",
  "ghsa_id": "GHSA-84fg-x5h4-w8xv",
  "euvd_id": "EUVD-2026-113195",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authentication bypass in ZITADEL Login V2",
  "summary": "ZITADEL Login V2 in versions 4.0.0 through 4.19.4 is affected by an authentication bypass. An unauthenticated attacker may establish an initial sign-in method and take over an account when that user has no authentication method configured.",
  "mitigation": "Upgrade ZITADEL to version 4.19.5 or later. Prioritize accounts without configured authentication methods until the upgrade is complete.",
  "vendor": "zitadel",
  "product": "zitadel",
  "affected": [
    {
      "affected_notes": [
        "4.0.0 - 4.19.4"
      ],
      "affected_ranges": [],
      "ecosystem": "other",
      "fixed_versions": [
        "4.19.5"
      ],
      "package_name": "ZITADEL/ZITADEL",
      "purl": null
    }
  ],
  "cwes": [
    565
  ],
  "cvss_score": 9.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 18.065803883333334,
  "t0_at": "2026-10-29T15:58:10.483000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-29T17:09:56.227956+00:00",
      "days": 0.04983501106481481,
      "is_lower_bound": false,
      "measured_at": "2026-10-29T15:58:10.483000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-29T15:58:10.483000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-29T15:58:10.483000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-119128"
    }
  }
}

published 2026-10-29 16:51Z
last change 2026-10-29 19:12Z

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