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CVE-2021-46142An issue was discovered in uriparser before 0.9.6. It performs invalid free operations in uriNormalizeSyntax.
- 5.5MediumCVSS base score
- 1.2%Exploitation in 30 daysEPSS · top 32% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
An issue was discovered in uriparser before 0.9.6. It performs invalid free operations in uriNormalizeSyntax.
Timeline
ID reserved
By mitre
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.2% · top 32% of all CVEs (13 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
n/a
- affected n/a
References
References6
- https://github.com/uriparser/uriparser/pull/124 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/uriparser/uriparser/issues/122 (opens in a new tab)x_refsource_MISCx_transferred
- https://blog.hartwork.org/posts/uriparser-096-with-security-fixes-released/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2022-00a529a8bf (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2022-cfd0048127 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- DSA-5063 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-32842 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-46142)Record last updated .