5.1

CVE-2026-42371: uriparser_project uriparser Numeric Truncation Error

CVSS: 5.1v3.1MediumAnalyzed
AliasesRHSA-2026:12430UBUNTU-CVE-2026-42371DEBIAN-CVE-2026-42371
Published 27-04-2026Last modified 27-04-2026
Open JSON

Vulnerability summary

CVE-2026-42371 is a medium (CVSS 5.1) Numeric Truncation Error vulnerability in uriparser_project uriparser. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
5.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 5
OPENSUSE-SU-2026:10747-1OPENSUSE-SU-2026:11049-1OPENSUSE-SU-2026:21297-1SUSE-SU-2026:22627-1SUSE-SU-2026:3021-1

Timeline

  1. 27-04-2026
    PublishedVulnerability first disclosed.
  2. 27-04-2026
    Last modifiedVulnerability information updated.

Description

uriparser before 1.0.1 has numeric truncation in text range comparison, if an application accepts URIs with a length in gigabytes.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

-0.01 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat5 products
  • mingw32-uriparser< 0:1.0.1-1.hum1
  • mingw64-uriparser< 0:1.0.1-1.hum1
  • uriparser< 0:1.0.1-1.hum1
  • uriparser-devel< 0:1.0.1-1.hum1
  • uriparser-doc< 0:1.0.1-1.hum1
Debian1 product
  • uriparserAll versions (No fix recorded) | < 1.0.1+dfsg-1
Ubuntu1 product
  • uriparserAll versions (No fix recorded)
Uriparser1 product
Uriparser_project1 product

5 vendors · 9 products

References

13 links
Show all 13 references