CVE-2026-88834
LOW
CVSS 3.7
Published: 2026-10-13
Modified: 2026-10-15
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Threat Intelligence Pending
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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.
Quick Facts
| CVE ID | CVE-2026-88834 |
| CVSS Score | 3.7 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| Published | 2026-10-13 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |