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CVE-2026-84313

CVE-2026-84313

validatedZero produced an exploit or a check.

GHSA-gfrc-g87h-7h5w ↗EUVD-2026-97865 ↗

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).+3.0dkevAttacks confirmed in the real world.
go nginx-ui < 1.9.10-0.20260703131214-23d1934099b0
fixed in 1.9.10-0.20260703131214-23d1934099b0
ETK-2026-1719Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:golang/Nginx-UI
cvss8.8cna vendorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
+3.0dTTV
28mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = cve.org publication
trigger signal (cve.org) +0dpublic poc+3.0dcheck availableagent stopped
0
+1d
+2d

description

Affected Nginx-UI versions allow a holder of a stolen valid JWT to enroll a TOTP secret or register a passkey without re-authenticating with the current password. An attacker can establish a credential they control for the victim account, potentially retaining access after a password change; TOTP enrollment requires that the account has not already enabled TOTP.

mitigation

Upgrade the Nginx-UI Go package to 1.9.10-0.20260703131214-23d1934099b0 or later. Review accounts for unexpected TOTP configuration or passkey registrations and revoke affected sessions.

fixed in 1.9.10-0.20260703131214-23d1934099b0

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.
yes, low privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.43%35th percentile
agent run time
28m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-12 20:51Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+3.0d
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. 2026-10-12 20:51Z
    ghsa: trigger signal, started the run
    https://github.com/advisories/GHSA-gfrc-g87h-7h5w
  2. 2026-10-12 20:51Z
    public poc, published 2026-10-15 20:11Z
    https://github.com/advisories/GHSA-gfrc-g87h-7h5w
  3. 2026-10-12 20:51Z

this entry in the feed

GET /api/v1/feed/CVE-2026-84313

{
  "etk_id": "ETK-2026-1719",
  "cve_id": "CVE-2026-84313",
  "display_id": "CVE-2026-84313",
  "ghsa_id": "GHSA-gfrc-g87h-7h5w",
  "euvd_id": "EUVD-2026-97865",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Insufficient authentication for second-factor enrollment in Nginx-UI",
  "summary": "Affected Nginx-UI versions allow a holder of a stolen valid JWT to enroll a TOTP secret or register a passkey without re-authenticating with the current password. An attacker can establish a credential they control for the victim account, potentially retaining access after a password change; TOTP enrollment requires that the account has not already enabled TOTP.",
  "mitigation": "Upgrade the Nginx-UI Go package to 1.9.10-0.20260703131214-23d1934099b0 or later. Review accounts for unexpected TOTP configuration or passkey registrations and revoke affected sessions.",
  "vendor": "go",
  "product": "nginx-ui",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.9.10-0.20260703131214-23d1934099b0"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "1.9.10-0.20260703131214-23d1934099b0"
      ],
      "package_name": "Nginx-UI",
      "purl": "pkg:golang/Nginx-UI"
    }
  ],
  "cwes": null,
  "cvss_score": 8.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.0043,
  "epss_percentile": 0.3577,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 28.44631035,
  "t0_at": "2026-10-12T20:51:44.751000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-15T21:09:47.731994+00:00",
      "days": 3.0125345022453702,
      "is_lower_bound": false,
      "measured_at": "2026-10-12T20:51:44.751000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-15T20:11:32+00:00",
      "days": 2.9720746412037036,
      "is_lower_bound": false,
      "measured_at": "2026-10-12T20:51:44.751000+00:00",
      "url": "https://github.com/advisories/GHSA-gfrc-g87h-7h5w"
    },
    "trigger_signal": {
      "at": "2026-10-12T20:51:44.751000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-12T20:51:44.751000+00:00",
      "url": "https://github.com/advisories/GHSA-gfrc-g87h-7h5w"
    }
  }
}

published 2026-10-15 20:41Z
last change 2026-10-21 05:31Z

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