CVE-2018-15747: The default configuration of glot-www through 2018-05-19 allows remote attackers to execute arbitrary code bec

Q: How do I fix CVE-2018-15747?

glot-www: upgrade to newer than 2018-05-19. Exact commands for each OS are on this page.

Q: Is CVE-2018-15747 being exploited?

CVE-2018-15747 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-2018-15747 affect?

CVE-2018-15747 affects glot-www. Severity is critical (CVSS 9.8). The default configuration of glot-www through 2018-05-19 allows remote attackers to execute arbitrary code because glot-code-runner supports os.system within a "python" "files" "content" JSON file.

Q: How urgent is CVE-2018-15747?

Priority 67/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2018-15747 is a critical-severity flaw (CVSS 9.8) affecting glot-www. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The default configuration of glot-www through 2018-05-19 allows remote attackers to execute arbitrary code because glot-code-runner supports os.system within a "python" "files" "content" JSON file.

Why this priority

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

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.6% (top 11%)
CISA exploited list	No
Weakness	CWE-20
Published	2019-06-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: glot

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

Am I affected?

Timeline

2019-06-21 14:15 UTCPublished CVE record published
2026-06-17 01:43 UTCUpdated Record last modified

glot glot-www UPGRADE

Affected: <= 2018-05-19

Fixed in: newer than 2018-05-19

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy glot-www || rpm -q glot-www || glot-www --version

2. UPGRADE to newer than 2018-05-19 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade glot-www

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade glot-www

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-2018-15747?

glot-www: upgrade to newer than 2018-05-19. Exact commands for each OS are on this page.

Is CVE-2018-15747 being exploited?

CVE-2018-15747 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-2018-15747 affect?

CVE-2018-15747 affects glot-www. Severity is critical (CVSS 9.8). The default configuration of glot-www through 2018-05-19 allows remote attackers to execute arbitrary code because glot-code-runner supports os.system within a "python" "files" "content" JSON file.

How urgent is CVE-2018-15747?

Priority 67/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Python vulnerabilities

References

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