CVE-2026-88834
Low
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.
SeverityLow
CVSS3.7
Exploit probability—
Product
Red Hat Hardened Images
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-203CWE-203
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Hardened Images | No range specified | — |
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