CVE-2026-70340: Missing authorization in Azure CycleCloud allows an authorized attacker to elevate privileges over a network.
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HIGH 8.1WATCHLISTUPGRADE
CVE-2026-70340 is a high-severity flaw (CVSS 8.1) affecting azure cyclecloud. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Missing authorization in Azure CycleCloud allows an authorized attacker to elevate privileges over a network.
Why this priority
- High severity
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.1 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.8% (top 44%) |
| CISA exploited list | No |
| Weakness | CWE-862 |
| Published | 2026-08-11 |
| Last modified | 2026-10-23 |
Publisher (CNA): Microsoft Corporation · Vendor: microsoft
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
microsoft azure cyclecloud UPGRADE
Affected: < 8.9.1
Fixed in: 8.9.1
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy azure-cyclecloud || rpm -q azure-cyclecloud || azure-cyclecloud --version
2. UPGRADE to 8.9.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade azure-cyclecloud
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade azure-cyclecloud
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Exact fixes by distribution
Fedora 46 · diffoscope · FIXED · 335-1.fc46 · FEDORA-2026-e4c4cc0856 · source
sudo dnf upgrade --advisory=FEDORA-2026-e4c4cc0856
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Related CVEs
- CVE-2026-65806 MEDIUM 6.5 UPGRADE Missing authorization in Azure CycleCloud allows an authorized attacker to disclose information over a network