Dashboard / CVE-2026-59897

CVE-2026-59897

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 71/100
Published: 2026-07-08 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: Low
A: None

Description

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.3.3 before 4.12.27, the AWS API Gateway v1 adapter can drop a distinct repeated request header value because it de-duplicates values using a substring comparison instead of an exact match, so middleware or application logic that depends on the complete X-Forwarded-For chain, rate limiting, audit logging, or proxy-chain validation can receive incomplete data. This issue is fixed in version 4.12.27.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
hono hono 4.3.3 – 4.12.27

References & Advisories (3)

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploitation Probability

0.18%
Raw Score 0.001800
Percentile 7.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00180
2026-10-28
0.00180

Intelligence Sources

nvd ref →

External Links