CVE-2026-125330

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

GHSA-9pjr-97x3-c4wv ↗EUVD-2026-122786 ↗

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.
other:harnessrouter/harnessrouter >= 0.4.2, < 0.31.7
fixed in 0.31.7
CWE-639 Authorization Bypass Through User-Controlled Key
ETK-2026-4090Zero's internal tracking ID, independent of the CVE number., permanent identifier
10h 27msince last run
39mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal (cve.org) +0hwaiting for further signals+1h42m
0
+4h
+6h
+8h
+10h
+12h

description

HarnessRouter 0.4.2 through 0.31.6 does not consistently apply workspace boundaries when handling session and response identifiers. A holder of a non-default workspace API key who obtains an identifier from another workspace in the same organization may access or alter that workspace's session-related data, including deleting or sharing sessions. Organization-to-organization access is not implicated.

mitigation

Upgrade HarnessRouter to version 0.31.7 or later. Until upgraded, distribute API keys only to principals trusted to access all workspaces in the organization.

fixed in 0.31.7

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.
–
agent run time
39m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-10 18:36Z
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, not validated: no deterministic check could cover this one, and no technique passed our review.

source signals

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

  1. 2026-11-10 18:36Z
  2. 2026-11-10 18:36Z

this entry in the feed

GET /api/v1/feed/CVE-2026-125330

{
  "etk_id": "ETK-2026-4090",
  "cve_id": "CVE-2026-125330",
  "display_id": "CVE-2026-125330",
  "ghsa_id": "GHSA-9pjr-97x3-c4wv",
  "euvd_id": "EUVD-2026-122786",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Cross-workspace authorization bypass in HarnessRouter",
  "summary": "HarnessRouter 0.4.2 through 0.31.6 does not consistently apply workspace boundaries when handling session and response identifiers. A holder of a non-default workspace API key who obtains an identifier from another workspace in the same organization may access or alter that workspace's session-related data, including deleting or sharing sessions. Organization-to-organization access is not implicated.",
  "mitigation": "Upgrade HarnessRouter to version 0.31.7 or later. Until upgraded, distribute API keys only to principals trusted to access all workspaces in the organization.",
  "vendor": "other",
  "product": "other:harnessrouter/harnessrouter",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0.4.2, < 0.31.7"
      ],
      "ecosystem": "other",
      "fixed_versions": [
        "0.31.7"
      ],
      "package_name": "harnessrouter/harnessrouter",
      "purl": null
    }
  ],
  "cwes": [
    639
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 38.579833066666666,
  "t0_at": "2026-11-10T18:36:53.148000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-10T18:36:53.148000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-10T18:36:53.148000+00:00",
      "url": "https://github.com/HarnessRouter/harnessrouter/security/advisories/GHSA-9pjr-97x3-c4wv"
    }
  }
}

published 2026-11-10 19:40Z
last change 2026-11-11 03:31Z

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