CVE-2020-36067: GJSON <=v1.6.5 allows attackers to cause a denial of service (panic: runtime error: slice bounds out of range)

Q: How do I fix CVE-2020-36067?

gjson: upgrade to newer than 1.6.5. Exact commands for each OS are on this page.

Q: Is CVE-2020-36067 being exploited?

CVE-2020-36067 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-2020-36067 affect?

CVE-2020-36067 affects gjson. Severity is high (CVSS 7.5). GJSON <=v1.6.5 allows attackers to cause a denial of service (panic: runtime error: slice bounds out of range) via a crafted GET call.

Q: How urgent is CVE-2020-36067?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2020-36067 is a high-severity flaw (CVSS 7.5) affecting gjson. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GJSON <=v1.6.5 allows attackers to cause a denial of service (panic: runtime error: slice bounds out of range) via a crafted GET call.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-129
Published	2021-01-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gjson project

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

Am I affected?

Timeline

2021-01-05 21:15 UTCPublished CVE record published
2026-06-17 03:14 UTCUpdated Record last modified

gjson project gjson UPGRADE

Affected: <= 1.6.5

Fixed in: newer than 1.6.5

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.6.5 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gjson

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-2020-36067?

gjson: upgrade to newer than 1.6.5. Exact commands for each OS are on this page.

Is CVE-2020-36067 being exploited?

CVE-2020-36067 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-2020-36067 affect?

CVE-2020-36067 affects gjson. Severity is high (CVSS 7.5). GJSON <=v1.6.5 allows attackers to cause a denial of service (panic: runtime error: slice bounds out of range) via a crafted GET call.

How urgent is CVE-2020-36067?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-42836 HIGH 7.5 UPGRADE GJSON before 1.9.3 allows a ReDoS (regular expression denial of service) attack.
CVE-2020-36066 HIGH 7.5 UPGRADE GJSON <1.6.5 allows attackers to cause a denial of service (remote) via crafted JSON.
CVE-2020-35380 HIGH 7.5 UPGRADE GJSON before 1.6.4 allows attackers to cause a denial of service via crafted JSON.

References

← Back to latest CVEs