7.5

CVE-2026-29087: hono node-server Incorrect Authorization

CVSS: 7.5v3.1HighAnalyzed
AliasesCGA-45ch-3cq5-jv73CGA-6jff-xc3q-c2wjCGA-jxgp-4f9f-jm3p
Published 06-03-2026Last modified 06-03-2026
Open JSON

Vulnerability summary

CVE-2026-29087 is a high (CVSS 7.5) Incorrect Authorization vulnerability in hono node-server. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.43%
0%100%
Low · +0.10 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-676W-93CV-MF32

Timeline

  1. 06-03-2026
    PublishedVulnerability first disclosed.
  2. 06-03-2026
    Last modifiedVulnerability information updated.

Description

@hono/node-server allows running the Hono application on Node.js. Prior to version 1.19.10, when using @hono/node-server's static file serving together with route-based middleware protections (e.g. protecting /admin/*), inconsistent URL decoding can allow protected static resources to be accessed without authorization. In particular, paths containing encoded slashes (%2F) may be evaluated differently by routing/middleware matching versus static file path resolution, enabling a bypass where middleware does not run but the static file is still served. This issue has been patched in version 1.19.10.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

+0.10 pp

From 0.33% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.43%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard13 products
  • kibana-9.1< 9.1.10-r7
  • kibana-9.1-iamguarded< 9.1.10-r7
  • langfuse-3< 3.160.0-r1
  • langfuse-3-worker< 3.160.0-r1
  • langfuse-fips-3< 3.160.0-r1
Wolfi2 products
  • langfuse-3< 3.160.0-r1
  • langfuse-3-worker< 3.160.0-r1
@hono1 product
  • node-server< 1.19.10
Hono1 product
Honojs1 product

5 vendors · 18 products

References

5 links