CVE-2026-12702: In affected versions of Octopus Deploy Insufficient checks on the project trigger actions allows an unauthoriz

Routine

MEDIUM 4.9UPGRADE

CVE-2026-12702 is a medium-severity flaw (CVSS 4.9) affecting octopus server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In affected versions of Octopus Deploy Insufficient checks on the project trigger actions allows an unauthorized user to trigger a deployment.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-07-24
Last modified	2026-10-24

Publisher (CNA): Octopus Deploy · Vendor: octopus

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-24 09:16 UTCPublished CVE record published
2026-10-24 13:10 UTCUpdated Record last modified

octopus octopus server UPGRADE

Affected: >= 2023.1.4189 and < 2026.1.11587 · >= 2026.2.61 and < 2026.2.13190

Fixed in: 2026.1.11587, 2026.2.13190

Safe to downgrade to: a release before 2023.1.4189

1. Check installed version

apt-cache policy octopus-server || rpm -q octopus-server || octopus-server --version

2. UPGRADE to 2026.1.11587 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade octopus-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade octopus-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2023.1.4189 (Debian / Ubuntu)

apt-cache madison octopus-server sudo apt install octopus-server=<VERSION_BEFORE_2023.1.4189> sudo apt-mark hold octopus-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list octopus-server sudo dnf downgrade octopus-server-<VERSION_BEFORE_2023.1.4189> sudo dnf versionlock add octopus-server

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-2026-12702?

octopus server: upgrade to 2026.1.11587, 2026.2.13190. Exact commands for each OS are on this page.

Is CVE-2026-12702 being exploited?

CVE-2026-12702 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-2026-12702 affect?

CVE-2026-12702 affects octopus server. Severity is medium (CVSS 4.9). In affected versions of Octopus Deploy Insufficient checks on the project trigger actions allows an unauthorized user to trigger a deployment.

How urgent is CVE-2026-12702?

Priority 23/100. No elevated risk signals yet.

References

← Back to latest CVEs