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CVE-2026-31891: Cockpit is a headless content management system

36
Routine
HIGH 7.7UPGRADE

CVE-2026-31891 is a high-severity flaw (CVSS 7.7) affecting cockpit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cockpit is a headless content management system. Any Cockpit CMS instance running version 2.13.4 or earlier with API access enabled is potentially affected by a a SQL Injection vulnerability in the MongoLite Aggregation Optimizer. Any deployment where the `/api/content/aggregate/{model}` endpoint is publicly accessible or reachable by untrusted users may be vulnerable, and attackers in possession of a valid read-only API key (the lowest privilege

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score7.7 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.4% (top 65%)
CISA exploited listNo
WeaknessCWE-89
Published2026-03-18
Last modified2026-06-17
Publisher (CNA): GitHub, Inc. · Vendor: agentejo

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

agentejo cockpit UPGRADE
Affected: < 2.13.5
Fixed in: 2.13.5
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy cockpit || rpm -q cockpit || cockpit --version
2. UPGRADE to 2.13.5 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade cockpit
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade cockpit
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
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-2026-31891?

cockpit: upgrade to 2.13.5. Exact commands for each OS are on this page.

Is CVE-2026-31891 being exploited?

CVE-2026-31891 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-2026-31891 affect?

CVE-2026-31891 affects cockpit. Severity is high (CVSS 7.7). Cockpit is a headless content management system. Any Cockpit CMS instance running version 2.13.4 or earlier with API access enabled is potentially affected by a a SQL Injection vulnerability in the MongoLite Aggregation Optimizer. Any deplo

How urgent is CVE-2026-31891?

Priority 36/100. High severity

Related CVEs

References

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