What’s Vulnerable › Vulnerabilities

CVE-2021-3822: Inefficient Regular Expression Complexity in josdejong/jsoneditor

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-27 · updated 2026-06-17
• Weakness: CWE-1333

Description

jsoneditor is vulnerable to Inefficient Regular Expression Complexity

Affected products

• josdejong/jsoneditor: before 9.5.6 — fixed in 9.5.6

How to fix

Upgrade to a fixed version: josdejong/jsoneditor 9.5.6. Check the vendor advisory for mitigations.

References

• https://github.com/josdejong/jsoneditor/commit/092e386cf49f2a1450625617da8e0137ed067c3e
• https://huntr.dev/bounties/1e3ed803-b7ed-42f1-a4ea-c4c75da9de73
• https://github.com/josdejong/jsoneditor/commit/092e386cf49f2a1450625617da8e0137ed067c3e
• https://huntr.dev/bounties/1e3ed803-b7ed-42f1-a4ea-c4c75da9de73

Get alerted when CVE-2021-3822 or the next vulnerability affects your stack