CVE-2024-56200

HIGHNVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.6 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 55% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.6Exploit: NoneExposed: 0

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

Altair is a fork of Misskey v12. Affected versions lack of request validation and lack of authentication in the image proxy for compressing and resizing remote files could allow attacks that could affect availability, such as by abnormally increasing the CPU usage of the server on which this software is running or placing a heavy load on the network it is using. This issue has been fixed in v12.24Q4.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS v3
8.6
EG Score
8.6(medium)
EPSS
43.6%
KEV
Not listed

Published

December 19, 2024

Last Modified

April 15, 2026

References (3)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 46× 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 102 total refreshes for this CVE.

  1. 2026-07-12 05:45 UTCEPSS rescore
  2. 2026-07-11 08:26 UTCEPSS rescore
  3. 2026-07-10 21:11 UTCOSV refresh
  4. 2026-07-09 19:09 UTCEPSS rescore
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  1. 2026-06-24 14:04 UTCEPSS rescore
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  5. 2026-06-22 14:25 UTCEPSS rescore
  6. 2026-06-22 05:26 UTCOSV refresh
  7. 2026-06-21 14:56 UTCEPSS rescore
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  9. 2026-06-21 01:59 UTCEPSS rescore
  10. 2026-06-19 19:25 UTCEPSS rescore
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  20. 2026-06-12 23:11 UTCEPSS rescore
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  22. 2026-06-11 13:59 UTCEPSS rescore
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  24. 2026-06-10 22:18 UTCEPSS rescore
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  26. 2026-06-10 13:21 UTCEPSS rescore
  27. 2026-06-08 14:16 UTCEPSS rescore
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  29. 2026-06-07 15:24 UTCEPSS rescore
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  37. 2026-06-04 13:11 UTCEPSS rescore
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  39. 2026-06-04 02:09 UTCOSV refresh
  40. 2026-06-02 20:12 UTCEPSS rescore
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  42. 2026-06-01 13:51 UTCEPSS rescore
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  45. 2026-05-31 22:30 UTCEPSS rescore
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  49. 2026-05-29 13:43 UTCEPSS rescore
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  55. 2026-05-26 13:43 UTCEPSS rescore
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  60. 2026-05-23 00:09 UTCEG score recompute
  61. 2026-05-22 21:16 UTCEPSS rescore
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  66. 2026-05-21 20:02 UTCEG score recompute
  67. 2026-05-20 22:37 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2024-56200?
CVE-2024-56200 is a high vulnerability published on December 19, 2024. Altair is a fork of Misskey v12. Affected versions lack of request validation and lack of authentication in the image proxy for compressing and resizing remote files could allow attacks that could affect availability, such as by abnormally increasing the CPU usage of the server on which this…
When was CVE-2024-56200 disclosed?
CVE-2024-56200 was first published in the National Vulnerability Database on December 19, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-56200 actively exploited?
CVE-2024-56200 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 43.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-56200?
CVE-2024-56200 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2024-56200?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-56200, 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.

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