Azure CycleCloud: Missing authorization allows privilege escalation
Summary
Microsoft Azure CycleCloud, a tool for orchestrating and managing high-performance computing (HPC) clusters in Azure, contains a missing authorization check (CWE-862). An attacker on the network who already holds a valid low-privilege account can elevate privileges without user interaction. According to the CVSS vector, the impact is high for confidentiality and none for integrity and availability. Microsoft rates the issue Important.
Affected
- Microsoft Azure CycleCloud from 1.0.0 to before 8.10.1-3968 (according to the CVE record; the MSRC table could not be checked)
Fixed in
Unknown. The affected range implies a fix in build 8.10.1-3968, but this is not confirmed by a primary source. Check the MSRC advisory before planning changes.
Workaround
Unknown. No official workaround is known. Until a fix is confirmed, limit CycleCloud roles and restrict management access to admin networks.
Exploitation
- Publicly disclosed: no
- Exploitation in the wild: not known
- CISA SSVC assessment: exploitation none, automatable no, technical impact total
- No public proof of concept found; not listed in CISA KEV (per third-party aggregator)
Our recommendation
- Check whether any client runs Azure CycleCloud and record the exact build.
- Read the MSRC advisory, confirm the fixed build and apply the Microsoft update as soon as it is verified.
- Until patched, limit who holds CycleCloud roles and restrict management access to admin networks.
- Review audit logs for unexpected role or permission changes.
- Re-check the NVD entry and MSRC advisory once analysis completes.
Information from Microsoft (Patch Tuesday November 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Microsoft Security Response Center advisory CVE-2026-113822 msrc.microsoft.com
- Rapid7: Patch Tuesday November 2026 www.rapid7.com
- Strix: CVE-2026-113822 (third-party aggregator) www.strix.ai
- GBHackers: Microsoft November 2026 Patch Tuesday gbhackers.com
- Azure CycleCloud 8.10.1 release notes learn.microsoft.com
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 11 Nov 2026, 12:18.
Original description (NVD)
Missing authorization in Azure CycleCloud allows an authorized attacker to elevate privileges over a network.
NVD references (1)
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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