8.2

CVE-2026-71315: nuxt Improper Handling of Case Sensitivity

CVSS: 8.2v3.1HighDeferred
AliasesGHSA-hxvh-4h3w-prp9
Published 05-08-2026Last modified 06-08-2026
Open JSON

Vulnerability summary

CVE-2026-71315 is a high (CVSS 8.2) Improper Handling of Case Sensitivity vulnerability in nuxt. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v3.1 (CVE.org)
EPSS score
0.47%
0%100%
Low · +0.20 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-08-2026
    PublishedVulnerability first disclosed.
  2. 06-08-2026
    Last modifiedVulnerability information updated.

Description

Nuxt is an open-source web development framework for Vue.js. From 3.21.7 until 3.21.10 and 4.5.1, mixed-case routeRules keys can fail to match case-folded lookups when router.options.sensitive is false and drop appMiddleware authorization gates. This is caused by an incomplete fix for CVE-2026-53721. This issue is fixed in 3.21.10 and 4.5.1.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

39%

Versus all other CVEs

30-day change

+0.20 pp

From 0.27% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.47%

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

Npm1 product
  • nuxt≥ 4.4.7, < 4.5.1 | ≥ 3.21.7, < 3.21.10
Nuxt1 product
  • nuxt≥ 4.4.7, < 4.5.1 | ≥ 3.21.7, < 3.21.10

2 vendors · 2 products

References

6 links