CVE-2026-74868

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-17. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

SiYuan versions before 3.7.4 contain an unthrottled brute-force vulnerability in the Publish Service Basic Auth implementation (PublishServiceTransport.RoundTrip() in kernel/server/proxy/publish.go). The Publish Service runs on a separate, unauthenticated-by-default listener (default TCP port 6808) and gates named publish-viewer accounts (Conf.Publish.Auth.Accounts) with Basic Auth that has no rate limiting, per-account lockout, or backoff. Unauthenticated remote attackers can submit unlimited password guesses against named accounts to gain access to published notes/notebooks.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

August 17, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 17, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

SiYuan before 3.7.4 Brute-Force Authentication via Publish Service | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-brute-force-authentication-via-publish-service
github Patch Available🟡 PoC Available

Unthrottled brute-force of Publish Service Basic Auth accounts in `PublishServiceTransport.RoundTrip()`, allowing unlimited automated guessing of named publish-viewer passwords on a separate, unauthenticated-by-default port · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-phg7-xcr4-q5wg

Vendor Advisories for CVE-2026-74868(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 21× in last 7d / 107× 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 125 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-74868?
CVE-2026-74868 is a high vulnerability published on August 17, 2026. SiYuan versions before 3.7.4 contain an unthrottled brute-force vulnerability in the Publish Service Basic Auth implementation (PublishServiceTransport.RoundTrip() in kernel/server/proxy/publish.go). The Publish Service runs on a separate, unauthenticated-by-default listener (default TCP port 6808)…
When was CVE-2026-74868 disclosed?
CVE-2026-74868 was first published in the National Vulnerability Database on August 17, 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-2026-74868 actively exploited?
CVE-2026-74868 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 68.6% of all scored CVEs.
What is the CVSS score of CVE-2026-74868?
CVE-2026-74868 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-74868?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74868, 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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