CVE-2021-23346
Regular Expression Denial of Service (ReDoS)
MEDIUM
5.3
CVSS Score
Published: March 4, 2021 at 04:55 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
2 products affected across 2 vendorsHtml Parse StringifyHtml Parse STRINGIFY2
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Severity
MEDIUM5.3
Exploit prediction
EPSS 2%
Description
This affects the package html-parse-stringify before 2.0.1; all versions of package html-parse-stringify2. Sending certain input could cause one of the regular expressions that is used for parsing to backtrack, freezing the process.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2.0.1
Affected range stops below 2.0.1, so it looks safe — our inference, not a vendor statement
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
x_refsource_MISCBroken LinkThird Party Advisory
Source: [email protected]
https://github.com/HenrikJoreteg/html-parse-stringify/blob/master/lib/parse.js%23L2x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/HenrikJoreteg/html-parse-stringify/commit/c7274a48e59c92b2b7e906fedf9065159e73fe12x_refsource_MISCBroken LinkThird Party Advisory
Source: [email protected]
https://github.com/rayd/html-parse-stringify2/blob/master/lib/parse.js%23L2x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1080633x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-HTMLPARSESTRINGIFY-1079306x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-HTMLPARSESTRINGIFY2-1079307CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- LOW
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-Other
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