CVE-2021-23900 json
Uncaught Exception leading to Denial of Service in json-sanitizer
published 2021-01-13 5 y ago modified 2026-06-17 4 mo ago also GHSA-8rf5-92jh-3vc9 , EUVD-2021-1020
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.1%
- EPSS 2.1% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
OWASP json-sanitizer before 1.2.2 can output invalid JSON or throw an undeclared exception for crafted input. This may lead to denial of service if the application is not prepared to handle these situations.
Patch / fix
- maven com.mikesamuel:json-sanitizer 1.2.2
- owasp json-sanitizer 1.2.2
Exploit prediction
2.13% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
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 |
|---|---|---|---|
| maven | com.mikesamuel:json-sanitizer | <1.2.2 |
1.2.2 |
Classification
- Weakness
-
- CWE-248 Uncaught Exception
References
-
github.com
/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e
web, patch, third-party-advisory
-
github.com
/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2
web, patch, third-party-advisory
-
groups.google.com
/g/json-sanitizer-support/c/dAW1AeNMoA0
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-23900
advisory
Sources
- CVE List CVE-2021-23900
- GitHub Advisory GHSA-8rf5-92jh-3vc9
- NVD CVE-2021-23900
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