CVE-2026-57575

MEDIUMPre-NVD 6.96.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 73% 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, secondary
Trending — 3 sources updated this week
6.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.9Exploit: NoneExposed: 0

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

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
6.9(medium)
EPSS
26.9%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 13, 2026

Advisory Details (3)

Auto-updated Jul 10, 2026
Patch available. Sources: github_commit, github_release, github.
github Patch Available

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 9× in last 7d / 9× 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.

  1. 2026-07-13 22:31 UTCEPSS rescore
  2. 2026-07-13 21:17 UTCEG score recompute
  3. 2026-07-13 06:13 UTCEPSS rescore
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-12 21:12 UTCEG score recompute
  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-11 21:08 UTCEG score recompute
  8. 2026-07-10 21:03 UTCEG score recompute
  9. 2026-07-10 21:02 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57575?
CVE-2026-57575 is a medium vulnerability 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 CVE-2026-57575 disclosed?
CVE-2026-57575 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57575 actively exploited?
CVE-2026-57575 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57575?
CVE-2026-57575 has a CVSS v3 base score of 6.9 (NVD).
How do I remediate CVE-2026-57575?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57575, 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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