CVE-2026-56764

LOW

Hono - Timing Attack in basicAuth and bearerAuth Middleware

Title source: cna

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.

References (2)

Core 2

Core References

Vendor Advisory vendor-advisory

GitHub Security Advisory (GHSA-gq3j-xvxp-8hrf)

https://github.com/honojs/hono/security/advisories/GHSA-gq3j-xvxp-8hrf

Third Party Advisory third-party-advisory

VulnCheck Advisory: Hono - Timing Attack in basicAuth and bearerAuth Middleware

https://www.vulncheck.com/advisories/hono-timing-attack-in-basicauth-and-bearerauth-middleware

Scores

CVSS v3 3.7

EPSS 0.0023

EPSS Percentile 13.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-208

Status published

Products (2)

Hono/Hono < 4.11.10

Hono/Hono 4.11.10

Published Jul 15, 2026

Tracked Since Jul 15, 2026