5

CVE-2024-43787: hono Cross-Site Request Forgery (CSRF)

CVSS: 5.0v3.1MediumAnalyzed
AliasesGHSA-rpfr-3m35-5vx5CGA-234v-q2xw-fmqvCGA-23vg-f7fr-mwpf
Published 22-08-2024Last modified 22-08-2024
Open JSON

Vulnerability summary

CVE-2024-43787 is a medium (CVSS 5.0) Cross-Site Request Forgery (CSRF) vulnerability in hono. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-R6XX-RQX3-VMMF

Timeline

  1. 22-08-2024
    PublishedVulnerability first disclosed.
  2. 22-08-2024
    Last modifiedVulnerability information updated.

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Hono CSRF middleware can be bypassed using crafted Content-Type header. MIME types are case insensitive, but isRequestedByFormElementRe only matches lower-case. As a result, attacker can bypass csrf middleware using upper-case form-like MIME type. This vulnerability is fixed in 4.5.8.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Hono

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Chainguard7 products
  • honoAll versions (No fix recorded)
  • hono-adapter-mqttAll versions (No fix recorded)
  • hono-cliAll versions (No fix recorded)
  • hono-compatAll versions (No fix recorded)
  • hono-service-authAll versions (No fix recorded)
Hono1 product
Honojs1 product
Npm1 product
  • hono< 4.5.8

4 vendors · 10 products

References

6 links