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Is Cloudflare down?

DegradedDegraded performance · checked 7m ago

Not fully — Cloudflare is reporting degraded performance.

Minor Service Outage

Cloudflare's official status page

Cloudflare uptime, as reported

Last 30 days
0.00%
Last 90 days
52.71%
Incidents (30d)
0
Incidents (90d)
2

Calculated from status changes we recorded on Cloudflare's own status page. Scheduled maintenance is not counted as downtime.

Recent status changes

  1. DegradedMinor Service Outage1mo ago
  2. Partial OutagePartial System Outage1mo ago

Vulnerabilities affecting Cloudflare

  • CVE-2026-12523MediumCVSS 7.52mo ago

    Summary Cloudflare quiche's HTTP/3 layer was discovered to be vulnerable to resource exhaustion (i.e., memory) by means of specially crafted HTTP/3 frames. Impact HTTP/3 defines multiple frame types to support HTTP message exchanges and connection management. Each frame has a length and a payload whose length depends on the frame type. quiche was found to be vulnerable when parsing some frame types to pre-allocating memory based on the declared length. An attacker would not need to send the number of declared bytes to trigger this issue. In addition, quiche was found to not apply QPACK decompression limits correctly. This could allow an attacker to send specially crafted HEADERS frames that would cause more memory commitment than otherwise advertised by MAX_FIELD_SECTION_SIZE (configured by set_max_field_section_size()). Mitigation: * Users are requested to upgrade to quiche 0.29.3 which is the earliest version containing the fix for this issue. Credits: Disclosed responsibly by Sébastien Féry

Stop checking status pages one at a time

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Cloudflare status questions

Is Cloudflare down right now?
Not fully — Cloudflare is reporting degraded performance. We last checked 7m ago against Cloudflare's official status page.
Is it Cloudflare or is it just me?
If this page says operational and you still can't connect, the problem is usually local — DNS, a proxy, SSO, or a single region. Cloudflare recorded 0 status events in the last 30 days.
How do I get alerted when Cloudflare goes down?
Add Cloudflare to your stack in ThreatLoops and outages are pushed to Slack, Microsoft Teams or a webhook — alongside vulnerabilities affecting the same vendor.