CVE-2026-42371

uriparser: uriparser: Denial of Service via numeric truncation with oversized URIs

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Severity

Moderate

Red Hat Product Security

4.7

CVSS 3.1

Review impact separately from score.

Published · April 27, 2026

Updated · July 6, 2026

Description

A flaw was found in uriparser. This vulnerability occurs due to numeric truncation in text range comparison when an application processes extremely long Uniform Resource Identifiers (URIs), specifically those with lengths in gigabytes. A local attacker could exploit this flaw by providing a malformed, excessively long URI, leading to a Denial of Service (DoS) condition where the application becomes unavailable.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-190 · Integer Overflow or Wraparound