Low severity · published Dec 14, 2025
CVE-2025-67899
uriparser through 0.9.9 allows unbounded recursion and stack consumption, as demonstrated by ParseMustBeSegmentNzNc with large input containing many commas
2.9
CVSS
0.1%
EPSS
No
On KEV
Description
uriparser through 0.9.9 allows unbounded recursion and stack consumption, as demonstrated by ParseMustBeSegmentNzNc with large input containing many commas.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Local
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UR
uriparser · uriparser project
through 0.9.9 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-67899
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-67899
github.com
https://github.com/uriparser/uriparser/issues/282
github.com
https://github.com/uriparser/uriparser/pull/284
www.openwall.com
http://www.openwall.com/lists/oss-security/2025/12/15/1
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