CVE-2022-45026: An issue in Markdown Preview Enhanced v0.6.5 and v0.19.6 for VSCode and Atom allows attackers to execute arbit

This week

CRITICAL 9.8REMOTEDOWNGRADEDOWNGRADE

CVE-2022-45026 is a critical-severity flaw (CVSS 9.8) affecting markdown preview enhanced, markdown preview enhanced. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in Markdown Preview Enhanced v0.6.5 and v0.19.6 for VSCode and Atom allows attackers to execute arbitrary commands during the GFM export process.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-78
Published	2022-12-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: markdown preview enhanced project

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

Am I affected?

Timeline

2022-12-07 02:15 UTCPublished CVE record published
2026-06-17 05:09 UTCUpdated Record last modified

markdown preview enhanced project markdown preview enhanced DOWNGRADE

Affected: 0.6.5 · 0.19.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.6.5

1. Check installed version

apt-cache policy markdown-preview-enhanced || rpm -q markdown-preview-enhanced || markdown-preview-enhanced --version

2. No fixed release: DOWNGRADE to a release before 0.6.5 (Debian / Ubuntu)

apt-cache madison markdown-preview-enhanced sudo apt install markdown-preview-enhanced=<VERSION_BEFORE_0.6.5> sudo apt-mark hold markdown-preview-enhanced

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

dnf --showduplicates list markdown-preview-enhanced sudo dnf downgrade markdown-preview-enhanced-<VERSION_BEFORE_0.6.5> sudo dnf versionlock add markdown-preview-enhanced

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.

markdown preview enhanced project markdown preview enhanced DOWNGRADE

Affected: 0.6.5 · 0.19.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.6.5

1. Check installed version

apt-cache policy markdown-preview-enhanced || rpm -q markdown-preview-enhanced || markdown-preview-enhanced --version

2. No fixed release: DOWNGRADE to a release before 0.6.5 (Debian / Ubuntu)

apt-cache madison markdown-preview-enhanced sudo apt install markdown-preview-enhanced=<VERSION_BEFORE_0.6.5> sudo apt-mark hold markdown-preview-enhanced

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

dnf --showduplicates list markdown-preview-enhanced sudo dnf downgrade markdown-preview-enhanced-<VERSION_BEFORE_0.6.5> sudo dnf versionlock add markdown-preview-enhanced

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-2022-45026?

markdown preview enhanced: downgrade or apply the listed mitigation; markdown preview enhanced: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-45026 being exploited?

CVE-2022-45026 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-2022-45026 affect?

CVE-2022-45026 affects markdown preview enhanced, markdown preview enhanced. Severity is critical (CVSS 9.8). An issue in Markdown Preview Enhanced v0.6.5 and v0.19.6 for VSCode and Atom allows attackers to execute arbitrary commands during the GFM export process.

How urgent is CVE-2022-45026?

Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-65716 HIGH 8.8 DOWNGRADE An issue in Visual Studio Code Extensions Markdown Preview Enhanced v0.8.18 allows attackers to execute arbitr
CVE-2022-45025 CRITICAL 9.8 DOWNGRADE DOWNGRADE Markdown Preview Enhanced v0.6.5 and v0.19.6 for VSCode and Atom was discovered to contain a command injection

References

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