Companies GitHub Monthly reportsJune 2026

GitHub in June 2026: incidents, uptime and changes

23incidents posted

6labelled major or critical

99.06%free of major/critical

92.50%free of any incident

0price changes

0notable page changes

Vendor-reported outage time 6 h 42 min, incident time 2.2 days. Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours. Last 90 days.

By vendor label: Critical 4 · Major 2 · Minor 15 · No impact listed 2

Major and critical incidents 6

Incident	Impact	Started	Duration	Status	Day
Copilot Code Review Failing	Critical	Jun 4, 18:02	1.9 h	resolved	06-04
Pull Requests and Issues unavailable for signed-out users	Critical	Jun 8, 07:11	1.4 h	resolved	06-08
Authentication issues related to API requests	Critical	Jun 10, 15:20	1.3 h	resolved	06-10
Incident with Copilot Availability	Critical	Jun 17, 03:50	54 min	resolved	06-17
Disruption with some GitHub services	Major	Jun 16, 17:45	30 min	resolved	06-16
Degradation with Webhooks, Pull Requests and Actions	Major	Jun 25, 17:50	37 min	resolved	06-25

Other incidents 17

Incident	Impact	Started	Duration	Status	Day
Delays with Code Scanning and Billing	Minor	Jun 1, 15:17	9.0 h	resolved	06-01
Disruption with some GitHub services	Minor	Jun 3, 03:13	3.5 h	resolved	06-03
Disruption with some GitHub services	Minor	Jun 3, 19:42	8.5 h	resolved	06-03
Auth issue resulting in API impacts, including some Slack and Teams channel subscriptions	Minor	Jun 5, 17:20	5.0 h	resolved	06-05
EU Network Maintenance	Minor	Jun 6, 15:31	3.3 h	resolved	06-06
Disruption with some GitHub services in the EU region	Minor	Jun 6, 16:53	14 min	resolved	06-06
Disruption with Claude Opus 4.7	Minor	Jun 8, 09:05	58 min	resolved	06-08
Degraded availability for GitHub.com, GraphQL API, and Webhooks UI/API	No impact listed	Jun 8, 15:00	0 min	resolved	06-08
Incident with Webhooks	Minor	Jun 11, 19:42	2.6 h	resolved	06-11
Increased latency with webhooks	Minor	Jun 15, 15:37	2.0 h	resolved	06-15
Multiple services have elevated errors and endpoint failures when checking feature flags	Minor	Jun 15, 18:32	38 min	resolved	06-15
Disruption with Copilot next edit suggestions	Minor	Jun 17, 17:57	1.5 h	resolved	06-17
Incident With Webhooks	No impact listed	Jun 17, 19:00	0 min	resolved	06-17
We are seeing elevated errors with Next Edit Suggestions and Completions	Minor	Jun 23, 23:04	25 min	resolved	06-23
Disruption with some GitHub services	Minor	Jun 27, 14:02	6.5 h	resolved	06-27
Disruption with some GitHub services	Minor	Jun 28, 17:50	3.1 h	resolved	06-28
Disruption with some GitHub services - Signup Flow	Minor	Jun 30, 15:38	11 min	resolved	06-30

CVEs published

CVE-2026-48529 GitHub MCP Server: Lockdown mode singleton in HTTP server causes cross-user GraphQL client confusion (CVSS 6.0)
CVE-2026-9106 UI misrepresentation vulnerability in GitHub Enterprise Server allowed unauthorized organization runner management via undisclosed OAuth scope on consent screen (CVSS 5.5)
CVE-2026-9132 Missing authorization vulnerability in GitHub Enterprise Server allowed disclosure of private repository contents via the Copilot pull request diff summary endpoint (CVSS 6.5)
CVE-2026-10585 Stored cross-site scripting vulnerability in GitHub Enterprise Server allowed arbitrary JavaScript execution via crafted Discussion titles in the Q&A category (CVSS 5.4)

Cite this

GitHub posted 23 status incidents in June 2026 (6 major or critical); 0 price changes and 0 notable page changes observed.

Title: GitHub in June 2026
Vendor: GitHub
Date: 2026-06-01 00:00 UTC
URL: https://rewindex.com/company/github/2026/06

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