CVE-2026-72808

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreMEDIUM confidence

Score 5.8 from GitHub Security Advisory published 2026-08-12. a secondary CVSS source baseline 5.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
5.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.8Exploit: Elevated riskExposed: 0

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

SiYuan versions up to and including v3.7.2 (fixed in v3.7.4) contain an information disclosure vulnerability in the /api/asset/getFileAnnotation endpoint, which returns .sya PDF-annotation file content without a publish-access check. Because the endpoint is gated only by CheckAuth (unlike the /assets/* route, which enforces publish access and password), an anonymous reader (when publish authentication is disabled) or any publish RoleReader who knows an asset path can read the private PDF annotations (highlights and notes) of publish-forbidden, password-protected, or unpublished documents. The issue is limited to non-encrypted notebooks; encrypted-box annotations are not exposed.

CVSS v3
5.8
EG Score
5.8(medium)
EG Risk
57(Attend)
EG Risk 57/100SSVC: Attend

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
Severity58% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 12, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

SiYuan before v3.7.4 Information Disclosure via getFileAnnotation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getfileannotation
github Patch Available🟡 PoC Available

Missing publish-access filter on getFileAnnotation discloses private PDF annotations of forbidden/protected documents (publish mode) · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v7ph-r5r6-4jcj

Vendor Advisories for CVE-2026-72808(1)

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

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/siyuan-note/siyuan/kernel—0.0.0-20260723031702-509b35055940—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 60× 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. 2026-09-19 04:04 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 02:10 UTCEG score recompute
  4. 2026-09-17 00:18 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-15 17:18 UTCEG score recompute
  8. 2026-09-15 03:12 UTCEPSS rescore
  9. 2026-09-14 15:26 UTCEG score recompute
  10. 2026-09-13 13:34 UTCEG score recompute
  11. 2026-09-12 15:02 UTCEPSS rescore
  12. 2026-09-12 11:42 UTCEG score recompute
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 08:57 UTCEG score recompute
  15. 2026-09-10 09:35 UTCEPSS rescore
  16. 2026-09-09 05:12 UTCEG score recompute
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-07 16:42 UTCEG score recompute
  19. 2026-09-06 13:48 UTCEPSS rescore
  20. 2026-09-06 05:10 UTCEG score recompute
  21. 2026-09-05 03:18 UTCEG score recompute
  22. 2026-09-04 05:07 UTCEPSS rescore
  23. 2026-09-02 23:28 UTCEG score recompute
  24. 2026-09-02 23:28 UTCGHSA enrichment
  25. 2026-09-02 14:12 UTCEPSS rescore
Show 62 more
  1. 2026-09-01 15:15 UTCEG score recompute
  2. 2026-09-01 15:15 UTCGHSA enrichment
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-09-01 04:40 UTCEPSS rescore
  5. 2026-09-01 04:40 UTCEPSS rescore
  6. 2026-08-31 12:19 UTCEG score recompute
  7. 2026-08-31 12:18 UTCGHSA enrichment
  8. 2026-08-30 19:18 UTCEPSS rescore
  9. 2026-08-30 19:17 UTCEPSS rescore
  10. 2026-08-30 10:24 UTCEG score recompute
  11. 2026-08-30 10:24 UTCGHSA enrichment
  12. 2026-08-30 01:22 UTCEPSS rescore
  13. 2026-08-29 08:32 UTCEG score recompute
  14. 2026-08-29 08:32 UTCGHSA enrichment
  15. 2026-08-28 21:42 UTCEPSS rescore
  16. 2026-08-27 19:36 UTCGHSA enrichment
  17. 2026-08-26 17:16 UTCEG score recompute
  18. 2026-08-26 17:16 UTCGHSA enrichment
  19. 2026-08-26 14:47 UTCEPSS rescore
  20. 2026-08-26 13:47 UTCEG score recompute
  21. 2026-08-26 13:47 UTCGHSA enrichment
  22. 2026-08-25 13:49 UTCEPSS rescore
  23. 2026-08-25 11:54 UTCEG score recompute
  24. 2026-08-25 11:54 UTCGHSA enrichment
  25. 2026-08-24 10:02 UTCEG score recompute
  26. 2026-08-24 10:02 UTCGHSA enrichment
  27. 2026-08-23 08:09 UTCEG score recompute
  28. 2026-08-23 08:09 UTCGHSA enrichment
  29. 2026-08-23 00:19 UTCEPSS rescore
  30. 2026-08-22 06:15 UTCEG score recompute
  31. 2026-08-22 06:15 UTCGHSA enrichment
  32. 2026-08-21 23:49 UTCEPSS rescore
  33. 2026-08-21 04:22 UTCEG score recompute
  34. 2026-08-21 04:22 UTCGHSA enrichment
  35. 2026-08-20 22:56 UTCEPSS rescore
  36. 2026-08-20 02:30 UTCEG score recompute
  37. 2026-08-20 02:30 UTCGHSA enrichment
  38. 2026-08-19 17:04 UTCEPSS rescore
  39. 2026-08-19 00:38 UTCEG score recompute
  40. 2026-08-19 00:37 UTCGHSA enrichment
  41. 2026-08-18 13:49 UTCEPSS rescore
  42. 2026-08-18 13:49 UTCEPSS rescore
  43. 2026-08-17 22:45 UTCEG score recompute
  44. 2026-08-17 22:45 UTCGHSA enrichment
  45. 2026-08-17 13:47 UTCEPSS rescore
  46. 2026-08-16 20:53 UTCEG score recompute
  47. 2026-08-16 20:53 UTCGHSA enrichment
  48. 2026-08-16 14:56 UTCEPSS rescore
  49. 2026-08-16 14:56 UTCEPSS rescore
  50. 2026-08-16 02:15 UTCEPSS rescore
  51. 2026-08-15 19:01 UTCEG score recompute
  52. 2026-08-15 19:01 UTCGHSA enrichment
  53. 2026-08-15 01:31 UTCEPSS rescore
  54. 2026-08-14 17:08 UTCEG score recompute
  55. 2026-08-14 17:08 UTCGHSA enrichment
  56. 2026-08-13 22:12 UTCEG score recompute
  57. 2026-08-13 22:12 UTCGHSA enrichment
  58. 2026-08-13 22:00 UTCEPSS rescore
  59. 2026-08-12 20:20 UTCEG score recompute
  60. 2026-08-12 20:06 UTCEG score recompute
  61. 2026-08-12 19:21 UTCEG score recompute
  62. 2026-08-12 19:20 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72808?
CVE-2026-72808 is a medium vulnerability published on August 12, 2026. SiYuan versions up to and including v3.7.2 (fixed in v3.7.4) contain an information disclosure vulnerability in the /api/asset/getFileAnnotation endpoint, which returns .sya PDF-annotation file content without a publish-access check. Because the endpoint is gated only by CheckAuth (unlike the…
When was CVE-2026-72808 disclosed?
CVE-2026-72808 was first published in the National Vulnerability Database on August 12, 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-2026-72808 actively exploited?
CVE-2026-72808 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 78.9% of all scored CVEs.
What is the CVSS score of CVE-2026-72808?
CVE-2026-72808 has a CVSS v3 base score of 5.8 (NVD).
How do I remediate CVE-2026-72808?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72808, 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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