Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Nextcloud | whiteboard | unaffected |
|
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No data available yet.
No solution or workaround provided in the CVE record.
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Tracking
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| Link | Providers |
|---|---|
| https://hackerone.com/reports/3576823 |
|
Tue, 27 Oct 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | SSR Leakage of JWT Tokens in Nextcloud Whiteboard via DevTools Protocol |
Tue, 27 Oct 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A SSRF vulnerability found that enables access to internal Chrome Devtools Protocol APIs that can leak the JWT authentication token for another user. A low privileged attacker could continually exploit this vulnerability to leak the JWT authentication token for another user when they start a recording, which then enables the attacker read/write access to the victim's Whiteboard. | |
| Weaknesses | CWE-918 | |
| References |
| |
| Metrics |
cvssV3_0
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Subscriptions
No data.
MITRE
Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2026-10-27T16:15:34.742Z
Reserved: 2026-09-09T15:00:00.573Z
Link: CVE-2026-87897
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-27T17:17:03.530
Modified: 2026-10-27T17:17:03.530
Link: CVE-2026-87897
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-10-27T18:15:06Z
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CWE-918
Server-Side Request Forgery (SSRF)