CVE-2018-1002150: Koji version 1.12, 1.13, 1.14 and 1.15 contain an incorrect access control vulnerability resulting in arbitrar

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CRITICAL 9.1REMOTEDOWNGRADE

CVE-2018-1002150 is a critical-severity flaw (CVSS 9.1) affecting koji. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Koji version 1.12, 1.13, 1.14 and 1.15 contain an incorrect access control vulnerability resulting in arbitrary filesystem read/write access. This vulnerability has been fixed in versions 1.12.1, 1.13.1, 1.14.1 and 1.15.1.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-732
Published	2018-04-04
Last modified	2026-06-17

Publisher (CNA): Fedora Project · Vendor: koji project

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

Am I affected?

Timeline

2018-04-04 20:29 UTCPublished CVE record published
2026-06-17 01:33 UTCUpdated Record last modified

koji project koji DOWNGRADE

Affected: 1.12.0 · 1.13.0 · 1.14.0 · 1.15.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.12.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.12.0 (Debian / Ubuntu)

apt-cache madison koji sudo apt install koji=<VERSION_BEFORE_1.12.0> sudo apt-mark hold koji

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

dnf --showduplicates list koji sudo dnf downgrade koji-<VERSION_BEFORE_1.12.0> sudo dnf versionlock add koji

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-2018-1002150?

koji: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-1002150 being exploited?

CVE-2018-1002150 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-2018-1002150 affect?

CVE-2018-1002150 affects koji. Severity is critical (CVSS 9.1). Koji version 1.12, 1.13, 1.14 and 1.15 contain an incorrect access control vulnerability resulting in arbitrary filesystem read/write access. This vulnerability has been fixed in versions 1.12.1, 1.13.1, 1.14.1 and 1.15.1.

How urgent is CVE-2018-1002150?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

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CVE-2017-1002153 HIGH 7.5 DOWNGRADE Koji 1.13.0 does not properly validate SCM paths, allowing an attacker to work around blacklisted paths for bu

References

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