CVE-2018-20301: An issue was discovered in Steve Pallen Coherence before 0.5.2 that is similar to a Mass Assignment vulnerabil

Q: How do I fix CVE-2018-20301?

coherence: upgrade to 0.5.2. Exact commands for each OS are on this page.

Q: Is CVE-2018-20301 being exploited?

CVE-2018-20301 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-20301 affect?

CVE-2018-20301 affects coherence. Severity is medium (CVSS 6.5). An issue was discovered in Steve Pallen Coherence before 0.5.2 that is similar to a Mass Assignment vulnerability. In particular, "registration" endpoints (e.g., creating, editing, updating) allow users to update any coherence_fields data.

Q: How urgent is CVE-2018-20301?

Priority 38/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2018-20301 is a medium-severity flaw (CVSS 6.5) affecting coherence. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Steve Pallen Coherence before 0.5.2 that is similar to a Mass Assignment vulnerability. In particular, "registration" endpoints (e.g., creating, editing, updating) allow users to update any coherence_fields data. For example, users can automatically confirm their accounts by sending the confirmed_at parameter with their registration request.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-20
Published	2018-12-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: coherence project

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

Am I affected?

Timeline

2018-12-20 09:29 UTCPublished CVE record published
2026-06-17 01:52 UTCUpdated Record last modified

coherence project coherence UPGRADE

Affected: < 0.5.2

Fixed in: 0.5.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy coherence || rpm -q coherence || coherence --version

2. UPGRADE to 0.5.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade coherence

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade coherence

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-2018-20301?

coherence: upgrade to 0.5.2. Exact commands for each OS are on this page.

Is CVE-2018-20301 being exploited?

CVE-2018-20301 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-2018-20301 affect?

CVE-2018-20301 affects coherence. Severity is medium (CVSS 6.5). An issue was discovered in Steve Pallen Coherence before 0.5.2 that is similar to a Mass Assignment vulnerability. In particular, "registration" endpoints (e.g., creating, editing, updating) allow users to update any coherence_fields data.

How urgent is CVE-2018-20301?

Priority 38/100. No elevated risk signals yet.

Related CVEs

CVE-2026-35307 CRITICAL 10.0 DOWNGRADE Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core)
CVE-2026-35308 CRITICAL 10.0 DOWNGRADE Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party
CVE-2026-35310 CRITICAL 9.8 DOWNGRADE Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core)
CVE-2026-35309 CRITICAL 9.8 DOWNGRADE Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party
CVE-2026-35304 CRITICAL 9.8 DOWNGRADE Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core)

References

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