CVE-2026-88837 — MEDIUM (6.5)

Vulnerability Description

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

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-305

References

https://access.redhat.com/errata/RHSA-2026:72111
https://access.redhat.com/security/cve/CVE-2026-88837
https://bugzilla.redhat.com/show_bug.cgi?id=2531351

FAQ

What is CVE-2026-88837?

CVE-2026-88837 is a vulnerability with a CVSS score of 6.5 (MEDIUM). BusyBox httpd treats yescrypt ($y$) password hashes as plaintext during Basic Authentication, inverting the authentication check.

How severe is CVE-2026-88837?

CVE-2026-88837 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-88837?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.