OWASP json-sanitizer before 1.2.2 can output invalid JSON or throw an undeclared…
Priority LOW 37CWE-248Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-248.
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.
Why it matters now
EPSS 0.02125 82nd percentileScored 2026-11-07
Fix Fixed com.mikesamuel:json-sanitizer (Maven): 1.2.2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | com.mikesamuel:json-sanitizer (Maven) | before 1.2.2 | 1.2.2 | Patch available | GHSA-8rf5-92jh-3vc9 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- com.mikesamuel:json-sanitizer (Maven) Vendor— Affected before 1.2.2 Fixed in 1.2.2 Patch available GHSA-8rf5-92jh-3vc9
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:owasp:json-sanitizer:*:*:*:*:*:*:*:* | before 1.2.2 | Vulnerable | owasp-modsecurity |
- cpe:2.3:a:owasp:json-sanitizer:*:*:*:*:*:*:*:* Versions before 1.2.2 Vulnerable ·owasp-modsecurity
Remediation
- Fix · GHSA-8rf5-92jh-3vc9 com.mikesamuel:json-sanitizer (Maven) Fixed in 1.2.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23900
- 2026-10-03 Alias added: GHSA-8rf5-92jh-3vc9
References
More owasp-modsecurity Json-sanitizer vulnerabilities
- TI-2021-06251 OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section… CVSS 3.1CRITICAL 9.8
- TI-2020-10947 OWASP json-sanitizer before 1.2.1 allows XSS. CVSS 3.1MEDIUM 6.1
Sources
- CVE-2021-23900 · CVE Program
- CVE-2021-23900 · NVD
- FIRST EPSS
- GHSA-8rf5-92jh-3vc9 · GitHub Advisory Database · CC BY 4.0
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