CVE-2026-73041

CRITICALPre-NVD 9.09.0—
EchelonGraph scoreHIGH confidence

Score 9.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-16. a secondary CVSS source baseline 9.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: Elevated riskExposed: 0

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

SiYuan versions before v3.7.4 fail to validate or escape annotation fields written to disk by the setFileAnnotation endpoint. Attackers can inject malicious markup into annotation fields that execute as script in the PDF renderer with full Node.js access when a user opens an annotated PDF.

CVSS v3
9.0
EG Score
9.0(high)
EG Risk
57(Track*)
EG Risk 57/100SSVC: 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
Severity90% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (2)

Auto-updated Aug 15, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

SiYuan before v3.7.4 Remote Code Execution via PDF Annotations | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-remote-code-execution-via-pdf-annotations
github Patch Available🟡 PoC Available

PDF annotation fields are written to disk unparsed and rendered into five raw attributes, turning a shared PDF into Remote Code Execution on the desktop client · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fqpw-c3pj-w8g9

Vendor Advisories for CVE-2026-73041(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 53× in last 7d / 53× 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. 2026-08-21 03:46 UTCGHSA enrichment
  2. 2026-08-21 00:06 UTCEG score recompute
  3. 2026-08-21 00:06 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 20:27 UTCGHSA enrichment
  6. 2026-08-20 16:47 UTCGHSA enrichment
  7. 2026-08-20 13:05 UTCGHSA enrichment
  8. 2026-08-20 09:23 UTCGHSA enrichment
  9. 2026-08-20 05:44 UTCGHSA enrichment
  10. 2026-08-20 02:04 UTCGHSA enrichment
  11. 2026-08-19 22:24 UTCGHSA enrichment
  12. 2026-08-19 18:43 UTCEG score recompute
  13. 2026-08-19 18:43 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 15:02 UTCGHSA enrichment
  16. 2026-08-19 11:22 UTCGHSA enrichment
  17. 2026-08-19 07:42 UTCGHSA enrichment
  18. 2026-08-19 04:02 UTCGHSA enrichment
  19. 2026-08-19 00:19 UTCGHSA enrichment
  20. 2026-08-18 20:39 UTCGHSA enrichment
  21. 2026-08-18 16:59 UTCEG score recompute
  22. 2026-08-18 16:59 UTCGHSA enrichment
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-18 13:49 UTCEPSS rescore
  25. 2026-08-18 12:57 UTCGHSA enrichment
Show 28 more
  1. 2026-08-18 09:14 UTCGHSA enrichment
  2. 2026-08-18 05:34 UTCGHSA enrichment
  3. 2026-08-18 01:54 UTCGHSA enrichment
  4. 2026-08-17 22:14 UTCGHSA enrichment
  5. 2026-08-17 18:34 UTCEG score recompute
  6. 2026-08-17 18:33 UTCGHSA enrichment
  7. 2026-08-17 17:49 UTCEG score recompute
  8. 2026-08-17 17:49 UTCGHSA enrichment
  9. 2026-08-17 14:46 UTCEG score recompute
  10. 2026-08-17 14:46 UTCGHSA enrichment
  11. 2026-08-17 13:47 UTCEPSS rescore
  12. 2026-08-17 11:06 UTCGHSA enrichment
  13. 2026-08-17 07:26 UTCGHSA enrichment
  14. 2026-08-17 03:47 UTCGHSA enrichment
  15. 2026-08-17 00:07 UTCGHSA enrichment
  16. 2026-08-16 20:27 UTCGHSA enrichment
  17. 2026-08-16 16:47 UTCEG score recompute
  18. 2026-08-16 16:47 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 13:08 UTCGHSA enrichment
  22. 2026-08-16 09:28 UTCGHSA enrichment
  23. 2026-08-16 05:48 UTCGHSA enrichment
  24. 2026-08-16 02:08 UTCEG score recompute
  25. 2026-08-16 02:08 UTCGHSA enrichment
  26. 2026-08-15 22:29 UTCEG score recompute
  27. 2026-08-15 21:53 UTCEG score recompute
  28. 2026-08-15 21:52 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73041?
CVE-2026-73041 is a critical vulnerability published on August 15, 2026. SiYuan versions before v3.7.4 fail to validate or escape annotation fields written to disk by the setFileAnnotation endpoint. Attackers can inject malicious markup into annotation fields that execute as script in the PDF renderer with full Node.js access when a user opens an annotated PDF.
When was CVE-2026-73041 disclosed?
CVE-2026-73041 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73041 actively exploited?
CVE-2026-73041 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 85.4% of all scored CVEs.
What is the CVSS score of CVE-2026-73041?
CVE-2026-73041 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-73041?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73041, 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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