CVE-2026-88834

Published: Oct 13, 2026Modified: Oct 15, 2026

3.7

Vector

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

Exploitability: 2.2 / Impact: 1.4

Source: secalert@redhat.com (Secondary)

Description

A flaw was found in BusyBox's httpd web server. When configured with system password authentication, a user existence oracle may exist in certain build configurations. An attacker could distinguish existing from non-existing usernames by observing authentication failure behavior. Impact is limited to username enumeration and requires non-default compile options or uncommon password file states; default BusyBox builds with shadow password support are not affected.

Related CWEs

CWE-203

Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

References (2)

https://access.redhat.com/security/cve/CVE-2026-88834

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2531348

Source: secalert@redhat.com

Timeline

No history available yet.