# Salesforce: Major incident: Service Disruption: Core Service

> Salesforce reported a major Core Service outage affecting 1 instance, preventing users from logging in and accessing their orgs from 2026-10-23 01:25 UTC to 2026-10-23 03:40 UTC (2 h 15 min). A recent release disrupted login-session creation; Salesforce rolled it back and confirmed access was restor

Canonical: https://rewindex.com/change/ie57c01645761ef
Last updated: 2026-10-23T05:33:00Z

**Summary:** Salesforce reported a major Core Service outage affecting 1 instance, preventing users from logging in and accessing their orgs from 2026-10-23 01:25 UTC to 2026-10-23 03:40 UTC (2 h 15 min). A recent release disrupted login-session creation; Salesforce rolled it back and confirmed access was restored. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-10-23 01:25 UTC · Detected: 2026-10-23 05:33 UTC
- [Source: https://status.salesforce.com/incidents/20004515](https://status.salesforce.com/incidents/20004515)
- [Company: Salesforce](https://rewindex.com/company/salesforce.md)
- Versions: before (none: first archived) → after incident\_version:130/20004515@ec2a9333ce51
- Change 1 of 1 for this incident

Incident page (full timeline): [Service Disruption: Core Service](https://rewindex.com/company/salesforce/incidents/20004515.md)
## What changed

**1. Added: Title**

```diff
+ Service Disruption: Core Service
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-10-23 01:25 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-10-23 03:40 UTC
```

**6. Added: Affected components**

```diff
+ 1 instance, Core Service
```

**7. Added: Update** (update) · 2026-10-23 05:20 UTC

```diff
+ We have resolved the issue that prevented users from logging in and accessing their orgs. We identified an issue introduced by a recent release that disrupted the creation of login sessions. We rolled back the affected release and confirmed that access has been restored. Users can now log in and access their orgs. We sincerely apologize for the disruption and its impact on your business. We will conduct a thorough investigation to determine the technical trigger, identify the underlying root cause, and implement preventive measures to reduce the risk of recurrence. 
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-23 01:25 UTC | Major incident: Service Disruption: Core Service (this change) | outage |

All Salesforce changes: [timeline](https://rewindex.com/company/salesforce/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._

## Cite this

Major incident: Service Disruption: Core Service on Salesforce’s status page, changed 2026-10-23 01:25 UTC (change 1 of 1).

- Canonical URL: https://rewindex.com/change/ie57c01645761ef
- Citation: Salesforce, “Major incident: Service Disruption: Core Service” (2026-10-23 01:25 UTC). Archived by Rewindex: https://rewindex.com/change/ie57c01645761ef (CC BY 4.0).
- Markdown link: `[Salesforce: Major incident: Service Disruption: Core Service (2026-10-23)](https://rewindex.com/change/ie57c01645761ef)`


---
Canonical: https://rewindex.com/change/ie57c01645761ef · Markdown: https://rewindex.com/change/ie57c01645761ef.md · JSON: https://rewindex.com/api/v1/changes/ie57c01645761ef · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T17:52:13.348Z