Arista CloudVision Portal: Path traversal in Network Provisioning Image Repository
Summary
An authenticated remote attacker with specific permissions can read or write files on the platform filesystem beyond the intended scope. The attacker can use specially crafted requests and/or crafted file uploads to the Network Provisioning Image Repository. The vulnerability is present in the default configuration of affected releases and CISA SSVC rates technical impact as total.
Affected
- CloudVision Portal 2026.2.0
- CloudVision Portal 2026.1.0 to 2026.1.2
- CloudVision Portal 2025.3.0 to 2025.3.3
- CloudVision Portal 2018.1.0 to before 2025.3.0 (version range per CVE record; confirm in the advisory)
Fixed in
- 2026.2.1 and later (2026.2.x train)
- 2026.1.3 and later (2026.1.x train)
- 2025.3.4 and later (2025.3.x train)
- Branches 2018.1 to 2025.2: Unknown. No fixed release is named in the sources.
Workaround
- No mitigation available according to the vendor.
Exploitation
- CISA SSVC: exploitation none, automatable no.
- No known exploitation reported in the sources reviewed.
- No public proof of concept found; this is not proof that none exists.
Our recommendation
- Check whether any CloudVision Portal on-premises instance is in use and which release branch it runs.
- Upgrade to a fixed release for your branch as soon as possible.
- For branches older than 2025.3, contact Arista support, because no fixed release is named in the sources.
- Review accounts with the required permissions, including third-party accounts.
- Keep the management platform off the internet and restrict access to management networks.
- Monitor for unusual file access or uploads on the platform.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Arista Security Advisory 0189 www.arista.com
- OpenCVE: CVE-2026-101154 app.opencve.io
- HOL Guard: CVE-2026-101154 hol.org
- Strix: CVE-2026-101154 www.strix.ai
- Arista Security Advisory 0184 (summary table) www.arista.com
- Canadian Centre for Cyber Security: AV26-947 www.cyber.gc.ca
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 09:15.
Original description (NVD)
An authenticated remote attacker with specific permissions can read or write files on the platform filesystem beyond the intended scope through specially crafted requests and/or crafted file uploads to the Network Provisioning Image Repository.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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