CVE-2026-57575

MEDIUMPre-NVD 6.96.9
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (47th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
6.9EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 6.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a Server-Side Request Forgery (SSRF) vulnerability in URL preview functionality in UrlPreviewService. Due to missing network restrictions before establishing outbound connections, a remote attacker can cause the Misskey server to initiate HTTP requests to loopback, private, or link-local services. Because IP address validation takes place after the request has been sent and the process is subsequently rejected, no sensitive internal data is believed to be transmitted back or exposed to the attacker. This issue is fixed in version 2026.6.0.

CVSS v3
6.9
EG Score
6.9MEDIUMmedium confidence
EG Risk
46
EG Risk 46/100

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)
Severity69% × 45%
The EG Score, 6.9 of 10.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
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 none (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
0.6%
EPSS %ILE
47th
KEV
Not listed

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 none (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.

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

July 10, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jul 10, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub advisoryMentions a patch (unverified)

SSRF bypass in URL Preview · Advisory · misskey-dev/misskey · GitHub

https://github.com/misskey-dev/misskey/security/advisories/GHSA-jvcx-f39m-5xrj
GitHub release Patch Available

2026.6.0

Patch available: misskey-dev/misskey 2026.6.0

https://github.com/misskey-dev/misskey/releases/tag/2026.6.0
GitHub commit Patch Available

commit 1eac4ccf513a (misskey-dev/misskey)

Patch available: misskey-dev/misskey 2026.6.0 (contains commit 1eac4ccf513a)

https://github.com/misskey-dev/misskey/commit/1eac4ccf513a067b9f7b7d123057c09a389fccee

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 35× 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.

Showing the most recent 100 of 139 refreshes 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 39 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  3. 2026-10-12 15:54 UTCEG score recompute
  4. 2026-10-11 19:37 UTCEG score recompute
  5. 2026-10-11 16:52 UTCEG score recompute
  6. 2026-10-11 14:15 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  16. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  18. 2026-10-01 14:57 UTCEG score recompute
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  20. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  21. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  22. 2026-09-28 09:45 UTCEG score recompute
  23. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  24. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  25. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.6% · 46th percentile
Show 75 more
  1. 2026-09-24 11:09 UTCEG score recompute
  2. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  3. 2026-09-23 05:43 UTCEG score recompute
  4. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  5. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  6. 2026-09-18 05:17 UTCEG score recompute
  7. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  8. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  9. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  11. 2026-09-14 08:14 UTCEG score recompute
  12. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  13. 2026-09-13 08:10 UTCEG score recompute
  14. 2026-09-12 02:44 UTCEG score recompute
  15. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  16. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  17. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  18. 2026-09-08 02:43 UTCEG score recompute
  19. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  20. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  21. 2026-09-05 21:40 UTCEG score recompute
  22. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  23. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  24. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  25. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  26. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  27. 2026-08-30 06:11 UTCEG score recompute
  28. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  29. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  30. 2026-08-27 21:39 UTCEG score recompute
  31. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  32. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  33. 2026-08-26 04:40 UTCEG score recompute
  34. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  35. 2026-08-25 03:59 UTCEG score recompute
  36. 2026-08-23 01:52 UTCEG score recompute
  37. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  38. 2026-08-22 01:42 UTCEG score recompute
  39. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  40. 2026-08-21 01:37 UTCEG score recompute
  41. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  42. 2026-08-20 01:31 UTCEG score recompute
  43. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  44. 2026-08-18 22:22 UTCEG score recompute
  45. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  46. 2026-08-17 22:10 UTCEG score recompute
  47. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  48. 2026-08-16 17:14 UTCEG score recompute
  49. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  50. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  51. 2026-08-15 17:10 UTCEG score recompute
  52. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  53. 2026-08-14 17:05 UTCEG score recompute
  54. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  55. 2026-08-12 16:24 UTCEG score recompute
  56. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  57. 2026-08-11 16:20 UTCEG score recompute
  58. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  59. 2026-08-09 16:04 UTCEG score recompute
  60. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  61. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  62. 2026-08-08 16:00 UTCEG score recompute
  63. 2026-08-06 15:52 UTCEG score recompute
  64. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  65. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  66. 2026-08-05 15:43 UTCEG score recompute
  67. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  68. 2026-08-04 13:32 UTCEG score recompute
  69. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  70. 2026-08-03 12:53 UTCEG score recompute
  71. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  72. 2026-08-02 12:46 UTCEG score recompute
  73. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  74. 2026-08-01 12:41 UTCEG score recompute
  75. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.3% · 27th percentile

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Frequently asked(5)

What is CVE-2026-57575?
CVE-2026-57575 is a medium-severity vulnerability; its CVE record was published on July 10, 2026. Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a Server-Side Request Forgery (SSRF) vulnerability in URL preview functionality in UrlPreviewService. Due to missing network restrictions before establishing outbound connections, a remote attacker can…
When was the CVE record for CVE-2026-57575 published?
The CVE record for CVE-2026-57575 was published on July 10, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 14, 2026; the record at its source may have been updated since.
Is CVE-2026-57575 actively exploited?
CVE-2026-57575 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57575?
CVE-2026-57575 has a CVSS base score of 6.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-57575?
A fix for CVE-2026-57575 is available: update to the fixed version the vendor names in its advisory.

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