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ETK-2026-2709Zero's internal tracking ID, independent of the CVE number.

ETK-2026-2709Zero's internal tracking ID, independent of the CVE number.

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

GHSA-736f-82w7-hj22 ↗

no check availablenot proven exploitable
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
go:github.com/openbao/openbao/v2 <2.6.5; <2.7.2; <0.2.0
fixed in 2.6.5, 2.7.2, 0.2.0
CWE-178 Improper Handling of Case Sensitivity
ETK-2026-2709Zero's internal tracking ID, independent of the CVE number., no cve assigned
pkg:golang/github.com/openbao/openbao/v2
pkg:golang/github.com/openbao/openbao-plugins/auth/ldap
pkg:golang/github.com/openbao/openbao-plugins/auth/radius
cvss7.6cna vendorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
5h 35msince last run
13mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal +0hwaiting for further signals+1h49m
0
+4h
+6h
+8h

description

Vulnerable OpenBao AppRole, Cert, LDAP, and RADIUS components may fail to enforce deny ACL rules for affected path-based inputs. An attacker must be able to provide relevant Role ID, CRL, user, or group values in a deployment that relies on those deny rules.

mitigation

Upgrade OpenBao to 2.7.2 and update the LDAP and RADIUS auth plugin modules to 0.2.0. If remaining on the 2.6.x line temporarily, upgrade to 2.6.5 and plan migration to 2.7.x.

fixed in 2.6.5, 2.7.2, 0.2.0

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.
–
agent run time
13m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
not published yet
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. 2026-10-26 22:20Z

this entry in the feed

GET /api/v1/feed/ETK-2026-2709

{
  "etk_id": "ETK-2026-2709",
  "cve_id": null,
  "display_id": "ETK-2026-2709",
  "ghsa_id": "GHSA-736f-82w7-hj22",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "OpenBao auth plugin authorization bypass through path normalization",
  "summary": "Vulnerable OpenBao AppRole, Cert, LDAP, and RADIUS components may fail to enforce deny ACL rules for affected path-based inputs. An attacker must be able to provide relevant Role ID, CRL, user, or group values in a deployment that relies on those deny rules.",
  "mitigation": "Upgrade OpenBao to 2.7.2 and update the LDAP and RADIUS auth plugin modules to 0.2.0. If remaining on the 2.6.x line temporarily, upgrade to 2.6.5 and plan migration to 2.7.x.",
  "vendor": "go",
  "product": "go:github.com/openbao/openbao/v2",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<2.6.5",
        "<2.7.2"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "2.6.5",
        "2.7.2"
      ],
      "package_name": "github.com/openbao/openbao/v2",
      "purl": "pkg:golang/github.com/openbao/openbao/v2"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "<0.2.0"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "0.2.0"
      ],
      "package_name": "github.com/openbao/openbao-plugins/auth/ldap",
      "purl": "pkg:golang/github.com/openbao/openbao-plugins/auth/ldap"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "<0.2.0"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "0.2.0"
      ],
      "package_name": "github.com/openbao/openbao-plugins/auth/radius",
      "purl": "pkg:golang/github.com/openbao/openbao-plugins/auth/radius"
    }
  ],
  "cwes": [
    178
  ],
  "cvss_score": 7.6,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 12.780311983333334,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-10-26T22:20:29+00:00",
      "days": -0.30868145077546294,
      "is_lower_bound": true,
      "measured_at": "2026-10-27T05:44:59.167009+00:00",
      "url": "https://github.com/openbao/openbao/security/advisories/GHSA-736f-82w7-hj22"
    }
  }
}

published 2026-10-27 00:21Z
last change 2026-10-27 05:32Z

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