CVE-2026-35255: Vulnerability in the Oracle Cloud Native Environment Command Line Interface product of Oracle Open Source Proj

Routine

MEDIUM 6.6DOWNGRADE

CVE-2026-35255 is a medium-severity flaw (CVSS 6.6) affecting cloud native environment command line interface. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Oracle Cloud Native Environment Command Line Interface product of Oracle Open Source Projects. The supported versions that is affected is v2.3.2. Easily exploitable vulnerability allows unauthenticated attacker to compromise Oracle Cloud Native Environment Command Line Interface product via a malicious environment variable. Successful attacks of this vulnerability can result in Oracle Cloud Native Environment Command Line Int

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.6 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-05-06
Last modified	2026-10-26

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-06 10:16 UTCPublished CVE record published
2026-10-26 19:10 UTCUpdated Record last modified

oracle cloud native environment command line interface DOWNGRADE

Affected: 2.3.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.3.2

1. Check installed version

apt-cache policy cloud-native-environment-command-line-interface || rpm -q cloud-native-environment-command-line-interface || cloud-native-environment-command-line-interface --version

2. No fixed release: DOWNGRADE to a release before 2.3.2 (Debian / Ubuntu)

apt-cache madison cloud-native-environment-command-line-interface sudo apt install cloud-native-environment-command-line-interface=<VERSION_BEFORE_2.3.2> sudo apt-mark hold cloud-native-environment-command-line-interface

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list cloud-native-environment-command-line-interface sudo dnf downgrade cloud-native-environment-command-line-interface-<VERSION_BEFORE_2.3.2> sudo dnf versionlock add cloud-native-environment-command-line-interface

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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.

Quick answers

How do I fix CVE-2026-35255?

cloud native environment command line interface: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-35255 being exploited?

CVE-2026-35255 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35255 affect?

CVE-2026-35255 affects cloud native environment command line interface. Severity is medium (CVSS 6.6). Vulnerability in the Oracle Cloud Native Environment Command Line Interface product of Oracle Open Source Projects. The supported versions that is affected is v2.3.2. Easily exploitable vulnerability allows unauthenticated attacker to compr

How urgent is CVE-2026-35255?

Priority 25/100. No elevated risk signals yet.

References

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