CVE-2026-107333

waiting for further signalsZero needs more public information before it can validate it.

GHSA-v66f-cwcm-hf73 ↗EUVD-2026-95117 ↗

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.
CISA Malcolm <= v26.08.0
fixed in v26.09.0
CWE-863 Incorrect Authorization
ETK-2026-994, permanent identifier
12d 00h 49msince last run
27mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal +0dcve.org publication+8.0dwaiting for further signals+8.5d
0
+2d
+4d
+6d

description

CISA Malcolm’s nginx reverse proxy can apply authorization checks inconsistently when processing certain request paths. An authenticated user may gain access to administrative or other role-restricted interfaces; an account that can reach the proxy is required.

mitigation

Upgrade Malcolm to v26.09.0 or later.

fixed in v26.09.0

check
no
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.
contextual
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.
0.98%61st percentile
agent run time
27m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-08 17:23Z
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

Contextual: an exploit technique exists, but no deterministic check could cover this one.

source signals

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

  1. 2026-09-30 17:06Z
  2. 2026-10-08 17:23Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-107333

{
  "etk_id": "ETK-2026-994",
  "cve_id": "CVE-2026-107333",
  "display_id": "CVE-2026-107333",
  "ghsa_id": "GHSA-v66f-cwcm-hf73",
  "euvd_id": "EUVD-2026-95117",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Path normalization authorization bypass in CISA Malcolm",
  "summary": "CISA Malcolm’s nginx reverse proxy can apply authorization checks inconsistently when processing certain request paths. An authenticated user may gain access to administrative or other role-restricted interfaces; an account that can reach the proxy is required.",
  "mitigation": "Upgrade Malcolm to v26.09.0 or later.",
  "vendor": "CISA",
  "product": "Malcolm",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= v26.08.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "v26.09.0"
      ],
      "package_name": "Malcolm",
      "purl": null
    }
  ],
  "cwes": [
    863
  ],
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
  "epss_score": 0.0098,
  "epss_percentile": 0.6157,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 26.82570935,
  "t0_at": "2026-10-08T17:23:14.455000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-09-30T17:06:21+00:00",
      "days": -8.01172980324074,
      "is_lower_bound": false,
      "measured_at": "2026-10-08T17:23:14.455000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-107333"
    }
  }
}

published 2026-10-08 18:21Z
last change 2026-10-21 04:45Z

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