CVE-2021-3795
Inefficient Regular Expression Complexity in sindresorhus/semver-regex
HIGH
7.5
CVSS Score
Published: September 15, 2021 at 04:23 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
2 products affected across 2 vendorsSemver RegexRegex Project Semver Regex
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
semver-regex is vulnerable to Inefficient Regular Expression Complexity
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 3.1.34.0.0
Affected range stops below 3.1.3, so it looks safe — our inference, not a vendor statement
v < 3.1.3v < 4.0.1
Vendor states this is fixed in 3.1.3 (unaffected)
Affected range stops below 4.0.1, 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 (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/sindresorhus/semver-regex/commit/11c66245f4e1976dccc52977ed183696a21a3fd7x_refsource_CONFIRMExploitPatchThird Party Advisory
Source: [email protected]
https://huntr.dev/bounties/006624e3-35ac-448f-aab9-7b5183f30e28CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-1333
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