CVE-2026-73047

MEDIUMPre-NVD 6.26.2—
EchelonGraph scoreMEDIUM confidence

Score 6.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-16. A secondary CVSS source baseline 6.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

siyuan versions <= 3.7.3 (fixed in v3.7.4) contain a server-side template injection vulnerability in the attribute-view Template calculation feature (introduced in v3.7.0-beta.1). The feature's template engine uses Sprig's unmodified function map, which still exposes the env, expandenv, and getHostByName functions that were removed elsewhere for CVE-2024-55660. A local, unauthenticated attacker (the kernel binds to 127.0.0.1 by default with no per-UID access control) can inject a malicious Template calculation formula to read environment variables belonging to the account running siyuan — including from a separate, unprivileged OS account — and to perform DNS lookups from the server's network position.

CVSS v3
6.2
EG Score
6.2MEDIUMmedium confidence
EG Risk
32
EG Risk 32/100CISA SSVC

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
Severity62% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 15, 2026

Last Modified

August 26, 2026

Advisory Details (2)

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

siyuan before v3.7.4 Server-Side Template Injection via attribute-view | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-server-side-template-injection-via-attribute-view
github Patch Available🟡 PoC Available

SSTI env/DNS leak via attribute-view Template calculation · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v97v-gxxg-rhmq

Vendor Advisories for CVE-2026-73047(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 16× in last 7d / 69× 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.

Showing the most recent 100 of 133 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 21:54 UTCGHSA enrichment
  3. 2026-10-03 22:46 UTCEG score recompute
  4. 2026-10-03 22:46 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-03 00:46 UTCEG score recompute
  7. 2026-10-03 00:46 UTCGHSA enrichment
  8. 2026-10-02 01:58 UTCEG score recompute
  9. 2026-10-02 01:58 UTCGHSA enrichment
  10. 2026-10-01 19:50 UTCEPSS rescore
  11. 2026-09-30 20:54 UTCEG score recompute
  12. 2026-09-30 20:54 UTCGHSA enrichment
  13. 2026-09-29 15:24 UTCEPSS rescore
  14. 2026-09-29 04:23 UTCEG score recompute
  15. 2026-09-29 04:23 UTCGHSA enrichment
  16. 2026-09-28 13:52 UTCEPSS rescore
  17. 2026-09-28 06:22 UTCEG score recompute
  18. 2026-09-28 06:21 UTCGHSA enrichment
  19. 2026-09-27 13:48 UTCEPSS rescore
  20. 2026-09-27 08:23 UTCEG score recompute
  21. 2026-09-27 08:23 UTCGHSA enrichment
  22. 2026-09-26 15:59 UTCEPSS rescore
  23. 2026-09-25 02:22 UTCEG score recompute
  24. 2026-09-25 02:22 UTCGHSA enrichment
  25. 2026-09-23 20:30 UTCEG score recompute
Show 75 more
  1. 2026-09-23 20:30 UTCGHSA enrichment
  2. 2026-09-23 17:54 UTCEPSS rescore
  3. 2026-09-22 20:45 UTCEG score recompute
  4. 2026-09-22 20:45 UTCGHSA enrichment
  5. 2026-09-21 21:09 UTCEPSS rescore
  6. 2026-09-21 19:06 UTCEG score recompute
  7. 2026-09-21 19:06 UTCGHSA enrichment
  8. 2026-09-20 20:16 UTCEPSS rescore
  9. 2026-09-20 18:43 UTCGHSA enrichment
  10. 2026-09-19 19:57 UTCEG score recompute
  11. 2026-09-19 19:57 UTCGHSA enrichment
  12. 2026-09-18 21:58 UTCEG score recompute
  13. 2026-09-18 21:57 UTCGHSA enrichment
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-17 22:04 UTCEG score recompute
  16. 2026-09-17 22:04 UTCGHSA enrichment
  17. 2026-09-16 23:22 UTCEG score recompute
  18. 2026-09-16 23:22 UTCGHSA enrichment
  19. 2026-09-16 14:08 UTCEPSS rescore
  20. 2026-09-15 19:18 UTCEG score recompute
  21. 2026-09-15 19:18 UTCGHSA enrichment
  22. 2026-09-15 03:12 UTCEPSS rescore
  23. 2026-09-14 20:03 UTCGHSA enrichment
  24. 2026-09-13 19:48 UTCEG score recompute
  25. 2026-09-13 19:48 UTCGHSA enrichment
  26. 2026-09-12 21:49 UTCEG score recompute
  27. 2026-09-12 21:49 UTCGHSA enrichment
  28. 2026-09-12 15:02 UTCEPSS rescore
  29. 2026-09-11 23:49 UTCEG score recompute
  30. 2026-09-11 23:49 UTCGHSA enrichment
  31. 2026-09-11 00:47 UTCEG score recompute
  32. 2026-09-11 00:47 UTCGHSA enrichment
  33. 2026-09-10 09:35 UTCEPSS rescore
  34. 2026-09-10 01:51 UTCGHSA enrichment
  35. 2026-09-09 03:49 UTCEG score recompute
  36. 2026-09-09 03:49 UTCGHSA enrichment
  37. 2026-09-08 22:01 UTCEPSS rescore
  38. 2026-09-07 18:23 UTCEG score recompute
  39. 2026-09-07 18:23 UTCGHSA enrichment
  40. 2026-09-06 20:24 UTCEG score recompute
  41. 2026-09-06 20:24 UTCGHSA enrichment
  42. 2026-09-06 13:48 UTCEPSS rescore
  43. 2026-09-05 22:19 UTCEG score recompute
  44. 2026-09-05 22:19 UTCGHSA enrichment
  45. 2026-09-05 00:17 UTCEG score recompute
  46. 2026-09-05 00:16 UTCGHSA enrichment
  47. 2026-09-04 05:07 UTCEPSS rescore
  48. 2026-09-04 00:40 UTCGHSA enrichment
  49. 2026-09-03 02:24 UTCEG score recompute
  50. 2026-09-03 02:23 UTCGHSA enrichment
  51. 2026-09-02 14:12 UTCEPSS rescore
  52. 2026-09-02 04:20 UTCEG score recompute
  53. 2026-09-02 04:20 UTCGHSA enrichment
  54. 2026-09-01 13:54 UTCEPSS rescore
  55. 2026-09-01 06:03 UTCEG score recompute
  56. 2026-09-01 06:03 UTCGHSA enrichment
  57. 2026-09-01 04:40 UTCEPSS rescore
  58. 2026-09-01 04:40 UTCEPSS rescore
  59. 2026-08-31 07:45 UTCEG score recompute
  60. 2026-08-31 07:45 UTCGHSA enrichment
  61. 2026-08-30 19:18 UTCEPSS rescore
  62. 2026-08-30 19:17 UTCEPSS rescore
  63. 2026-08-30 09:47 UTCEG score recompute
  64. 2026-08-30 09:46 UTCGHSA enrichment
  65. 2026-08-30 01:22 UTCEPSS rescore
  66. 2026-08-29 11:47 UTCEG score recompute
  67. 2026-08-29 11:46 UTCGHSA enrichment
  68. 2026-08-28 21:42 UTCEPSS rescore
  69. 2026-08-28 13:15 UTCGHSA enrichment
  70. 2026-08-27 15:13 UTCEG score recompute
  71. 2026-08-27 15:13 UTCGHSA enrichment
  72. 2026-08-27 14:25 UTCEPSS rescore
  73. 2026-08-26 17:14 UTCEG score recompute
  74. 2026-08-26 17:14 UTCGHSA enrichment
  75. 2026-08-26 14:47 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-73047?
CVE-2026-73047 is a medium vulnerability published on August 15, 2026. siyuan versions <= 3.7.3 (fixed in v3.7.4) contain a server-side template injection vulnerability in the attribute-view Template calculation feature (introduced in v3.7.0-beta.1). The feature's template engine uses Sprig's unmodified function map, which still exposes the env, expandenv, and…
When was CVE-2026-73047 disclosed?
CVE-2026-73047 was first published on August 15, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73047 actively exploited?
CVE-2026-73047 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73047?
CVE-2026-73047 has a CVSS base score of 6.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73047?
A fix for CVE-2026-73047 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73047 are linked in the Vendor Advisories panel on this page.

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