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ETK-2026-2707Zero's internal tracking ID, independent of the CVE number.

ETK-2026-2707Zero's internal tracking ID, independent of the CVE number.

validatedZero produced an exploit or a check.

GHSA-q824-44ff-f5j5 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
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
fixed in 2.6.5, 2.7.2
CWE-287 Improper Authentication
ETK-2026-2707Zero's internal tracking ID, independent of the CVE number., no cve assigned
pkg:golang/github.com/openbao/openbao/v2
cvss7.0cna vendorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:N
−5h40mTTV
12mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal +0hcheck available+2h26magent stopped
0
+2h
+4h
+6h
+8h

description

OpenBao's OIDC token endpoint can issue an ID token for a public client that is also configured to permit the client-credentials grant. An attacker needs the affected public client's client ID and the unsafe combination of public-client and client-credentials settings.

mitigation

Upgrade github.com/openbao/openbao/v2 to 2.6.5, 2.7.2 or later.

fixed in 2.6.5, 2.7.2

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.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
12m
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

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. 2026-10-26 22:08Z

this entry in the feed

GET /api/v1/feed/ETK-2026-2707

{
  "etk_id": "ETK-2026-2707",
  "cve_id": null,
  "display_id": "ETK-2026-2707",
  "ghsa_id": "GHSA-q824-44ff-f5j5",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Improper client credential authorization in OpenBao OIDC",
  "summary": "OpenBao's OIDC token endpoint can issue an ID token for a public client that is also configured to permit the client-credentials grant. An attacker needs the affected public client's client ID and the unsafe combination of public-client and client-credentials settings.",
  "mitigation": "Upgrade github.com/openbao/openbao/v2 to 2.6.5, 2.7.2 or later.",
  "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"
    }
  ],
  "cwes": [
    287
  ],
  "cvss_score": 7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 11.928481833333333,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-10-27T00:33:46.507885+00:00",
      "days": -0.23600918653935185,
      "is_lower_bound": true,
      "measured_at": "2026-10-27T06:13:37.728596+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-26T22:08:14+00:00",
      "days": -0.3370798796527778,
      "is_lower_bound": true,
      "measured_at": "2026-10-27T06:13:37.728596+00:00",
      "url": "https://github.com/openbao/openbao/security/advisories/GHSA-q824-44ff-f5j5"
    }
  }
}

published 2026-10-27 00:21Z
last change 2026-10-27 06:12Z

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