CVE-2026-15342
MEDIUMDescription
Plane contains a multi‑tenant authorization flaw in its asset‑management API that allows authenticated users from one workspace to access, delete, or duplicate assets belonging to another workspace by providing only the victim workspace slug and asset ID. The affected endpoints return presigned file URLs and enable destructive or duplicative actions without verifying that the requester is a member of the targeted workspace. This enables cross‑tenant data exposure, data deletion, and persistent exfiltration of files into an attacker‑controlled workspace.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 31% of all known CVEs.
References
Related Vulnerabilities
Other CWE-552 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2020-17519 | High | 7.5 | 98% | KEV | Fix |
| CVE-2025-11371 | High | 7.5 | 92% | KEV | Fix |
| CVE-2023-50164 | Critical | 9.8 | 81% | - | Fix |
| CVE-2016-3715 | Medium | 5.5 | 75% | KEV | Fix |
| CVE-2020-15175 | High | 7.4 | 72% | - | Fix |
| CVE-2021-39316 | High | 7.5 | 66% | - | - |
Common questions
How do I fix CVE-2026-15342?
No published fix for CVE-2026-15342 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-15342 being actively exploited?
Not that we know of. CVE-2026-15342 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.38% is the estimated probability that it will be exploited in the next 30 days. That is higher than 31% of all scored CVEs.
How severe is CVE-2026-15342?
CVE-2026-15342 has a CVSS v3 base score of 6.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-23.