← back to feed
ETK-2026-1458Zero's internal tracking ID, independent of the CVE number.

ETK-2026-1458Zero's internal tracking ID, independent of the CVE number.

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

GHSA-gg3p-r4g8-vxg2 ↗

no check availablenot proven exploitable
awaiting cvepublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).−8.0dkevAttacks confirmed in the real world.
go:github.com/siyuan-note/siyuan >= 3.5.4
fixed in v3.8.7
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
ETK-2026-1458Zero's internal tracking ID, independent of the CVE number., no cve assigned
pkg:golang/siyuan-note/siyuan
cvss7.5cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4d 20h 39msince last run
34mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal +0dpublic poc+0dwaiting for further signals+3.1d
0
+2d
+4d
+6d
+8d

description

SiYuan on Windows mishandles device-namespace path aliases when deciding whether an import source is sensitive. An attacker able to submit import requests can bypass that check and cause sensitive local files to be copied into assets that may be accessible over HTTP, exposing material such as instance credentials or TLS keys.

mitigation

Upgrade SiYuan to v3.8.7 or later. Until upgraded, restrict access to import functionality and avoid exposing Windows-hosted instances to untrusted users or networks.

fixed in v3.8.7

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.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
34m
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).
−8.0d
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. 2026-10-13 05:22Z
  2. 2026-10-13 05:22Z

this entry in the feed

GET /api/v1/feed/ETK-2026-1458

{
  "etk_id": "ETK-2026-1458",
  "cve_id": null,
  "display_id": "ETK-2026-1458",
  "ghsa_id": "GHSA-gg3p-r4g8-vxg2",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Windows device-path validation bypass in SiYuan kernel",
  "summary": "SiYuan on Windows mishandles device-namespace path aliases when deciding whether an import source is sensitive. An attacker able to submit import requests can bypass that check and cause sensitive local files to be copied into assets that may be accessible over HTTP, exposing material such as instance credentials or TLS keys.",
  "mitigation": "Upgrade SiYuan to v3.8.7 or later. Until upgraded, restrict access to import functionality and avoid exposing Windows-hosted instances to untrusted users or networks.",
  "vendor": "go",
  "product": "go:github.com/siyuan-note/siyuan",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.5.4"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "v3.8.7"
      ],
      "package_name": "siyuan-note/siyuan",
      "purl": "pkg:golang/siyuan-note/siyuan"
    }
  ],
  "cwes": [
    22
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 34.49780715,
  "t0_at": null,
  "signals": {
    "public_poc": {
      "at": "2026-10-13T05:22:48+00:00",
      "days": -7.978239613530093,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T04:51:27.924861+00:00",
      "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-gg3p-r4g8-vxg2"
    },
    "trigger_signal": {
      "at": "2026-10-13T05:22:48+00:00",
      "days": -7.978239613530093,
      "is_lower_bound": true,
      "measured_at": "2026-10-21T04:51:27.924861+00:00",
      "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-gg3p-r4g8-vxg2"
    }
  }
}

published 2026-10-13 10:53Z
last change 2026-10-21 04:45Z

Need the technical details behind an entry?

Every entry here shows what we attempted and when. The technical details, the generated exploit that fired it and the evidence behind the verdict are not public. Tell us about your use case and we’ll get back to you about extended API access.

Protected by reCAPTCHA; the Google Privacy Policy and Terms of Service apply.