CVE-2020-36067
Improper Validation of Array Index in GJSON
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2020-36067- CVSS 3.1
- 7.5 High
CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2023-0752
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.
- Record
EUVD-2023-0752- CVSS 3.1
- 7.5 High
CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p64j-r5f4-pwwx
Improper Validation of Array Index in GJSON
GJSON < 1.6.6 allows attackers to cause a denial of service (panic: runtime error: slice bounds out of range) via a crafted GET call.
- Record
GHSA-p64j-r5f4-pwwx- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-129
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2020-36067- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-129
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2020-36067- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-36067
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.
- Record
DEBIAN-CVE-2020-36067- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-p64j-r5f4-pwwx
Improper Validation of Array Index in GJSON
GJSON < 1.6.6 allows attackers to cause a denial of service (panic: runtime error: slice bounds out of range) via a crafted GET call.
- Record
GHSA-p64j-r5f4-pwwx- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-129
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-36067
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.
- Record
UBUNTU-CVE-2020-36067- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGO-2021-0054 No score
Panic due to improper input validation in ForEach in github.com/tidwall/gjson
Due to improper bounds checking, maliciously crafted JSON objects can cause an out-of-bounds panic. If parsing user input, this may be used as a denial of service vector.
- Record
GO-2021-0054- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/tidwall/gjsonGo |
before 1.6.6 | 1.6.6 |
golang-github-tidwall-gjsonDebian:12 |
before 1.6.7-1 | 1.6.7-1 |
golang-github-tidwall-gjsonDebian:13 |
before 1.6.7-1 | 1.6.7-1 |
golang-github-tidwall-gjsonDebian:14 |
before 1.6.7-1 | 1.6.7-1 |
golang-github-tidwall-gjsonUbuntu:20.04:LTS |
All versions, plus listed versions 1.1.5-2 |
None known |
golang-github-tidwall-gjsonUbuntu:22.04:LTS |
All versions, plus listed versions 1.6.7-1 |
None known |
golang-github-tidwall-gjsonUbuntu:24.04:LTS |
All versions, plus listed versions 1.14.4-21.17.1-1 |
None known |
golang-github-tidwall-gjsonUbuntu:25.10 |
All versions, plus listed versions 1.17.1-1 |
None known |
golang-github-tidwall-gjsonUbuntu:26.10 |
All versions, plus listed versions 1.17.1-11.19.0-1 |
None known |
golang-github-tidwall-gjsonUbuntu:26.04:LTS |
All versions, plus listed versions 1.17.1-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-36067 is a high vulnerability (CVSS 7.5) in Gjson Project Gjson, published January 5, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.44%, the 73rd percentile. Fixed in github.com/tidwall/gjson 1.6.6.
References
github.com/tidwall/gjson/issues/196
nvd.nist.gov/vuln/detail/CVE-2020-36067
pkg.go.dev/vuln/GO-2021-0054
security-tracker.debian.org/tracker/CVE-2020-36067
ubuntu.com/security/CVE-2020-36067
cve.org/CVERecord?id=CVE-2020-36067