CVE-2026-88837CWE-305

CVE-2026-88837

Medium · published September 23, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
18.7
In the wild
Unconfirmed
What it is

BusyBox httpd treats yescrypt ($y$) password hashes as plaintext during Basic Authentication, inverting the authentication check.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00272 · 18.7th percentile
Weakness
CWE-305 · Authentication Bypass by Primary Weakness
Published
2026-09-23T22:17Z
References (3)
https://access.redhat.com/errata/RHSA-2026:72111 · [email protected]https://access.redhat.com/security/cve/CVE-2026-88837 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2531351 · [email protected]
EPSS history
Timeline
  • 25 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 23 SEP 17:45Z
    Busybox: busybox: httpd misidentifies yescrypt password hashes as plaintext, inverting authentication
    cvelistv5