CVE-2026-58436CWE-1333CWE-407

CVE-2026-58436

High · published August 13, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
48.5
In the wild
Unconfirmed
What it is

ParseAcceptLanguage quadratic-time DoS via Locale middleware on unauthenticated requests

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00609 · 48.5th percentile
Weaknesses
CWE-1333 · Inefficient Regular Expression Complexity; CWE-407 · Inefficient Algorithmic Complexity
Published
2026-08-13T21:17Z
References (4)
EPSS history
Timeline
  • 13 AUG 16:44Z
    ParseAcceptLanguage quadratic-time DoS via Locale middleware on unauthenticated requests
    cvelistv5