CVE-2026-82650

MEDIUMPre-NVD 4.44.4—
EchelonGraph scoreHIGH confidence

Score 4.4 from GitHub Security Advisory published 2026-08-30. a secondary CVSS source baseline 4.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.4Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

SiYuan 3.8.0 contains a path traversal / sensitive file exposure vulnerability in the RenderTemplate function (kernel/model/template.go), reachable via the POST /api/template/render endpoint (kernel/api/template.go). The endpoint restricts the supplied path only to the workspace directory (util.IsAbsPathInWorkspace) but, unlike the file API's refuseToAccess() blocklist, applies no sensitive-path exclusion. This allows an authenticated attacker to read sensitive workspace files, including conf/conf.json, which contains the API token and cookie signing key. The issue is fixed in v3.8.1.

CVSS v3
4.4
EG Score
4.4(high)
EG Risk
20(Track)
EG Risk 20/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity44% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

August 30, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 30, 2026
Patch available. Sources: github.
generic

SiYuan before v3.8.1 Path Traversal via /api/template/render | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-3.8.1-path-traversal-via-api-template-render
github Patch Available

Sensitive workspace files (including conf.json secrets) readable via /api/template/render, inconsistent with the file API's own sensitive-path blocklist · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9jfx-rc58-h23j

Vendor Advisories for CVE-2026-82650(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 58× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 06:19 UTCEG score recompute
  2. 2026-09-20 06:19 UTCGHSA enrichment
  3. 2026-09-19 05:51 UTCEG score recompute
  4. 2026-09-19 05:51 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 05:25 UTCEG score recompute
  7. 2026-09-18 05:25 UTCGHSA enrichment
  8. 2026-09-17 04:59 UTCEG score recompute
  9. 2026-09-17 04:59 UTCGHSA enrichment
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-16 04:32 UTCGHSA enrichment
  13. 2026-09-15 04:01 UTCEG score recompute
  14. 2026-09-15 04:01 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 03:35 UTCEG score recompute
  18. 2026-09-14 03:35 UTCGHSA enrichment
  19. 2026-09-13 03:09 UTCEG score recompute
  20. 2026-09-13 03:09 UTCGHSA enrichment
  21. 2026-09-12 02:42 UTCEG score recompute
  22. 2026-09-12 02:42 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 02:15 UTCEG score recompute
Show 33 more
  1. 2026-09-11 02:15 UTCGHSA enrichment
  2. 2026-09-10 01:48 UTCGHSA enrichment
  3. 2026-09-09 01:21 UTCEG score recompute
  4. 2026-09-09 01:21 UTCGHSA enrichment
  5. 2026-09-08 22:01 UTCEPSS rescore
  6. 2026-09-08 00:55 UTCEG score recompute
  7. 2026-09-08 00:55 UTCGHSA enrichment
  8. 2026-09-07 00:27 UTCEG score recompute
  9. 2026-09-07 00:27 UTCGHSA enrichment
  10. 2026-09-06 13:48 UTCEPSS rescore
  11. 2026-09-05 23:56 UTCEG score recompute
  12. 2026-09-05 23:56 UTCGHSA enrichment
  13. 2026-09-05 15:31 UTCEPSS rescore
  14. 2026-09-04 23:30 UTCEG score recompute
  15. 2026-09-04 23:30 UTCGHSA enrichment
  16. 2026-09-04 05:07 UTCEPSS rescore
  17. 2026-09-03 22:28 UTCGHSA enrichment
  18. 2026-09-02 22:02 UTCEG score recompute
  19. 2026-09-02 22:02 UTCGHSA enrichment
  20. 2026-09-02 14:12 UTCEPSS rescore
  21. 2026-09-01 21:35 UTCEG score recompute
  22. 2026-09-01 21:35 UTCGHSA enrichment
  23. 2026-09-01 13:54 UTCEPSS rescore
  24. 2026-09-01 04:40 UTCEPSS rescore
  25. 2026-09-01 04:40 UTCEPSS rescore
  26. 2026-08-31 21:08 UTCGHSA enrichment
  27. 2026-08-31 17:24 UTCEG score recompute
  28. 2026-08-31 17:24 UTCGHSA enrichment
  29. 2026-08-31 16:43 UTCEG score recompute
  30. 2026-08-31 16:43 UTCGHSA enrichment
  31. 2026-08-30 15:18 UTCEG score recompute
  32. 2026-08-30 14:37 UTCEG score recompute
  33. 2026-08-30 14:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82650?
CVE-2026-82650 is a medium vulnerability published on August 30, 2026. SiYuan 3.8.0 contains a path traversal / sensitive file exposure vulnerability in the RenderTemplate function (kernel/model/template.go), reachable via the POST /api/template/render endpoint (kernel/api/template.go). The endpoint restricts the supplied path only to the workspace directory…
When was CVE-2026-82650 disclosed?
CVE-2026-82650 was first published in the National Vulnerability Database on August 30, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82650 actively exploited?
CVE-2026-82650 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 87.3% of all scored CVEs.
What is the CVSS score of CVE-2026-82650?
CVE-2026-82650 has a CVSS v3 base score of 4.4 (NVD).
How do I remediate CVE-2026-82650?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82650, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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