CVE-2026-73608

HIGHPre-NVD 8.68.6
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 8.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-13. A secondary CVSS source baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Elevated

Also known asEUVD-2026-57812 (ENISA EUVD) · GHSA-75xh-mp4f-f2rf (GitHub Security Advisories) · GO-2026-6632 (OSV.dev)Source: ENISA EUVD

8.6EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.6Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

SiYuan's development branch (endpoint introduced by commit 9b8e8956f, not present in v3.7.3 or master, patched in v3.7.4-alpha.3) contains a missing-authorization vulnerability in the /api/av/getAttributeViewSearchTarget endpoint. The route is registered with CheckAuth only and performs no authorization checks (no CheckReadonly, no publish-access or encrypted-notebook gating). Given a database identifier taken from a published page and a keyword, an anonymous reader can query the endpoint to retrieve matching database row content, including rows that publish filters (FilterAttributeViewByPublishAccess) would otherwise withhold. No released stable version is affected.

CVSS v3
8.6
EG Score
8.6HIGHmedium confidence
EG Risk
70
EG Risk 70/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity86% × 45%
Impact severity (EG Severity): CVSS 8.6 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
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
0.3%
EPSS %ILE
23rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.6): severity, escalated by confirmed exploitation. This CVE's 8.6 is its impact severity (EG Severity), not escalated.

EG Severity
8.6 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; 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 public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 13, 2026

Last Modified

October 29, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
Patch available. Sources: github.
Web page

SiYuan before v3.7.4 Authorization Bypass via getAttributeViewSearchTarget | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-authorization-bypass-via-getattributeviewsearchtarget
GitHub advisoryMentions a patch (unverified)

getAttributeViewSearchTarget returns database row content to anonymous readers with no publish-access check, reopening the class closed one day earlier at the adjacent route · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9cqf-hhrq-7v45

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/siyuan-note/siyuan/kernel—
  • 0.0.0-20260726161145-9b8e8956f997 up to 0.0.0-20260812083335-251596fc0de2: fixed in 0.0.0-20260812083335-251596fc0de2
—

Weakness Classification(1)

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

Data Freshness Timeline

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

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 244 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 144 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:57 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  3. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  4. 2026-11-10 18:16 UTCEchelonGraph re-scored
  5. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  6. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  7. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  8. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  9. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  10. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  11. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  12. 2026-11-03 20:19 UTCEchelonGraph re-scored
  13. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  14. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  15. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  16. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  17. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  18. 2026-10-29 21:26 UTCEchelonGraph re-scored
  19. 2026-10-29 20:27 UTCEchelonGraph re-scored
  20. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  21. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  22. 2026-10-27 21:09 UTCEchelonGraph re-scored
  23. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  24. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  25. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
Show 75 more
  1. 2026-10-25 14:05 UTCEchelonGraph re-scored
  2. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  3. 2026-10-23 18:26 UTCEchelonGraph re-scored
  4. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  5. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  6. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  7. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  8. 2026-10-20 08:27 UTCEchelonGraph re-scored
  9. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  10. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  11. 2026-10-18 03:15 UTCEchelonGraph re-scored
  12. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  13. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  14. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  15. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  16. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  17. 2026-10-13 07:51 UTCEchelonGraph re-scored
  18. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  19. 2026-10-12 15:40 UTCEchelonGraph re-scored
  20. 2026-10-11 19:26 UTCEchelonGraph re-scored
  21. 2026-10-11 16:42 UTCEchelonGraph re-scored
  22. 2026-10-11 14:01 UTCEchelonGraph re-scored
  23. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  24. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  25. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  26. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  27. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  28. 2026-10-07 02:23 UTCEchelonGraph re-scored
  29. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  30. 2026-10-06 13:55 UTCEchelonGraph re-scored
  31. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  32. 2026-10-05 14:42 UTCEchelonGraph re-scored
  33. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  34. 2026-10-03 19:53 UTCEchelonGraph re-scored
  35. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  36. 2026-10-02 21:56 UTCEchelonGraph re-scored
  37. 2026-10-02 08:05 UTCEchelonGraph re-scored
  38. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  39. 2026-10-01 09:55 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  40. 2026-09-30 21:50 UTCEchelonGraph re-scored
  41. 2026-09-30 21:50 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  42. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  43. 2026-09-29 04:16 UTCEchelonGraph re-scored
  44. 2026-09-29 04:16 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  45. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  46. 2026-09-28 12:54 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  47. 2026-09-28 01:06 UTCEchelonGraph re-scored
  48. 2026-09-28 01:06 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  49. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  50. 2026-09-27 09:48 UTCEchelonGraph re-scored
  51. 2026-09-27 09:48 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  52. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  53. 2026-09-25 03:37 UTCEchelonGraph re-scored
  54. 2026-09-25 03:37 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  55. 2026-09-24 11:20 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  56. 2026-09-23 23:32 UTCEchelonGraph re-scored
  57. 2026-09-23 23:32 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  58. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  59. 2026-09-23 11:41 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  60. 2026-09-22 23:53 UTCEchelonGraph re-scored
  61. 2026-09-22 23:53 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  62. 2026-09-22 12:05 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  63. 2026-09-22 00:16 UTCEchelonGraph re-scored
  64. 2026-09-22 00:16 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  65. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  66. 2026-09-21 12:21 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  67. 2026-09-21 00:33 UTCEchelonGraph re-scored
  68. 2026-09-21 00:33 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  69. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  70. 2026-09-20 12:44 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  71. 2026-09-20 00:18 UTCEchelonGraph re-scored
  72. 2026-09-20 00:18 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  73. 2026-09-19 12:30 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6
  74. 2026-09-19 00:41 UTCEchelonGraph re-scored
  75. 2026-09-19 00:41 UTCGHSA enrichmentGHSA-75xh-mp4f-f2rf · GitHub severity CRITICAL · GitHub CVSS 8.6

Frequently asked(5)

What is CVE-2026-73608?
CVE-2026-73608 is a high-severity vulnerability; its CVE record was published on August 13, 2026. SiYuan's development branch (endpoint introduced by commit 9b8e8956f, not present in v3.7.3 or master, patched in v3.7.4-alpha.3) contains a missing-authorization vulnerability in the /api/av/getAttributeViewSearchTarget endpoint. The route is registered with CheckAuth only and performs no…
When was CVE-2026-73608 made public?
CVE-2026-73608 was made public on July 29, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 13, 2026. EchelonGraph's copy of the record carries a last-modified date of October 29, 2026; the record at its source may have been updated since.
Is CVE-2026-73608 actively exploited?
CVE-2026-73608 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (23rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73608?
CVE-2026-73608 has a CVSS base score of 8.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73608?
A fix for CVE-2026-73608 is available: update to the fixed version the vendor names in its advisory.

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