CVE-2026-56764

Hono - Timing Attack in basicAuth and bearerAuth Middleware

LOW
3.7
CVSS Score
Published: July 15, 2026 at 11:25 AM UTC
Updated: October 24, 2026 at 10:10 PM UTC
1 product affected across 1 vendorHono

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Severity
LOW3.7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Hono before 4.11.10 contains a timing attack vulnerability in the basicAuth and bearerAuth middlewares due to non-constant-time string comparison in the timingSafeEqual function. Attackers can exploit early termination of string equality checks to infer valid credentials through precise timing measurements.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0 ≤ v < 4.11.100
Vendor states this is fixed in 4.11.10 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.7LOWVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-208

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