Misskey is an open source, federated social media platform. Versions 2025.3.2 and later, but prior to 2026.5.4, contain a vulnerability where a lack of proper permission checks allows access to certain data points from the Direct Messages (formerly Chat) feature, regardless of account permissions. This vulnerability occurs whether or not federation is enabled. Notes created with "specified" visibility (formerly "direct" visibility) are not affected. This issue has been fixed in version 2026.5.4.
CVE-2026-46712
“—” beside the score: it is equal to the CVSS score beside it.
This low-severity CVE scores 2.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (28th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
- Lower severity and no public exploit yet
The CVE record names the fixed release — apply it.
- CVSS v3
- 2.3
- EG Score
- 2.3LOWmedium confidence
- EG Risk
- 10EG Risk 10/100
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 (value × EchelonGraph’s weight)Severity23% × 45%The EG Score, 2.3 of 10.Exploitation0.4% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.Exploitation none (CISA Vulnrichment) · Automatable no (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: The CVE record names the fixed release. Apply it within your standard update timelines. - EPSS PROB
- 0.4%
- EPSS %ILE
- 28th
- KEV
- Not listed
SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.
The CVE record names the fixed release. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (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 3, 2026
Last Modified
September 8, 2026
References (2)
- security-advisories@githubhttps://github.com/misskey-dev/misskey/releases/tag/2026.5.4
- security-advisories@githubhttps://github.com/misskey-dev/misskey/security/advisories/GHSA-2m3r-xx7x-63j6
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 34× 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 it from the CNA feed. 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). Most recent first.
- 2026-10-11 19:45 UTCEG score recompute
- 2026-10-11 16:59 UTCEG score recompute
- 2026-10-11 14:24 UTCEG score recompute
- 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-06 23:45 UTCEG score recompute
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 27th percentile
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 27th percentile
- 2026-10-04 06:17 UTCEG score recompute
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 27th percentile
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 27th percentile
- 2026-10-01 02:31 UTCEG score recompute
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 27th percentile
- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 27th percentile
- 2026-09-27 18:13 UTCEG score recompute
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 27th percentile
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 27th percentile
- 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.4% · 27th percentile
- 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-22 21:25 UTCEG score recompute
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 12th percentile
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- 2026-09-19 23:26 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-17 01:32 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-14 08:13 UTCEG score recompute
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-11 14:53 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-07 18:46 UTCEG score recompute
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-04 14:17 UTCEG score recompute
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-01 20:57 UTCEG score recompute
- 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-29 21:55 UTCEG score recompute
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-26 12:41 UTCEG score recompute
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-23 19:19 UTCEG score recompute
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-21 02:00 UTCEG score recompute
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-18 08:40 UTCEG score recompute
- 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-15 14:41 UTCEG score recompute
- 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-12 21:22 UTCEG score recompute
- 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-10 04:02 UTCEG score recompute
- 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-07 10:43 UTCEG score recompute
- 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-04 17:24 UTCEG score recompute
- 2026-08-04 16:29 UTCEG score recompute
- 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-03 22:21 UTCEG score recompute
- 2026-08-03 21:38 UTCEG score recomputeFirst assessed: 2.3 LOW
- 2026-08-03 21:38 UTCMITRE cvelistV5first tracked
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Frequently asked(5)
What is CVE-2026-46712?
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What is the CVSS score of CVE-2026-46712?
How do I remediate CVE-2026-46712?
Dependency Blast Radius
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