CVE-2020-35380 json
Denial of service in GJSON
published 2020-12-15 5 y ago modified 2026-06-17 4 mo ago also GHSA-w942-gw6m-p62c , GO-2021-0059 , EUVD-2021-1416
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
GJSON before 1.6.4 allows attackers to cause a denial of service via crafted JSON.
Patch / fix
- go github.com/tidwall/gjson 1.6.4
- gjson_project gjson 1.6.4
- golang-github-tidwall-gjson Debian 14, Debian 13, Debian 12 1.6.7-1
debian advisories DEBIAN-CVE-2020-35380
Exploit prediction
1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/tidwall/gjson/issues/192 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/tidwall/gjson | <1.6.4 |
1.6.4 |
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/tidwall/gjson/commit/f0ee9ebde4b619767ae4ac03e8e42addb530f6bc
web, patch
-
github.com
/tidwall/gjson/issues/192
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-35380
advisory
-
github.com
/tidwall/gjson
package
-
pkg.go.dev
/vuln/GO-2021-0059
web
Sources
- CVE List CVE-2020-35380
- GitHub Advisory GHSA-w942-gw6m-p62c
- NVD CVE-2020-35380
- OSV GO-2021-0059
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.