CVE-2021-42836
HIGH
7.5
CVSS Score
Published: October 22, 2021 at 05:22 PM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorGjson
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
GJSON before 1.9.3 allows a ReDoS (regular expression denial of service) attack.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.9.3
Affected range stops below 1.9.3, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (5)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/tidwall/gjson/commit/590010fdac311cc8990ef5c97448d4fec8f29944x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/tidwall/gjson/commit/77a57fda87dca6d0d7d4627d512a630f89a91c96x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/tidwall/gjson/compare/v1.9.2...v1.9.3x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/tidwall/gjson/issues/236x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://github.com/tidwall/gjson/issues/237CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-400
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