CVE-2026-67449

validatingZero is analyzing and reversing it now.
no check availablenot proven exploitable
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.
Portabase < 1.21.2
fixed in 1.21.2
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
ETK-2026-4225Zero's internal tracking ID, independent of the CVE number., permanent identifier
–running
startingcurrent stage
timeline
0 = cve.org publication
trigger signal (cve.org) +0h
0
+2h
+4h
+6h
+8h
+10h
+12h

description

Portabase versions earlier than 1.21.2 contain a path traversal issue in the TUS upload webhook handler. An unauthenticated attacker able to reach that handler can overwrite files in Portabase's private data directory, potentially including the encryption master key.

Still under analysis: more detail becomes available as the pipeline runs.

mitigation

Upgrade Portabase to version 1.21.2 or later. Restrict access to the TUS upload webhook until the upgrade is complete.

fixed in 1.21.2

check
building now
exploit
not yet
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.
–
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.
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agent run time
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cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-11 21:51Z
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.
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outcome

Run in progress: no artifact yet.

source signals

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

  1. 2026-11-11 21:51Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-67449

{
  "etk_id": "ETK-2026-4225",
  "cve_id": "CVE-2026-67449",
  "display_id": "CVE-2026-67449",
  "ghsa_id": null,
  "euvd_id": null,
  "status": "in_pipeline",
  "anchor_state": "anchored",
  "title": "Unauthenticated path traversal in Portabase TUS uploads",
  "summary": "Portabase versions earlier than 1.21.2 contain a path traversal issue in the TUS upload webhook handler. An unauthenticated attacker able to reach that handler can overwrite files in Portabase's private data directory, potentially including the encryption master key.",
  "mitigation": "Upgrade Portabase to version 1.21.2 or later. Restrict access to the TUS upload webhook until the upgrade is complete.",
  "vendor": "Portabase",
  "product": "portabase",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.21.2"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.21.2"
      ],
      "package_name": "portabase",
      "purl": null
    }
  ],
  "cwes": [
    22
  ],
  "cvss_score": 9.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": null,
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": null,
  "t0_at": "2026-11-11T21:51:23.105000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-11T21:51:23.105000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-11T21:51:23.105000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-67449"
    }
  }
}

published 2026-11-11 22:23Z
last change 2026-11-11 22:23Z

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