5.3

CVE-2026-44457: hono

CVSS: 5.3v3.1MediumAnalyzed
AliasesCGA-779j-h9cc-3x89CGA-vfrr-4v66-gv9hGHSA-p77w-8qqv-26rm
Published 13-05-2026Last modified 18-05-2026
Open JSON

Vulnerability summary

CVE-2026-44457 is a medium (CVSS 5.3) vulnerability in hono. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.6% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.33%
0%100%
Low · +0.13 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-9C4W-JW9P-27MQ

Timeline

  1. 13-05-2026
    PublishedVulnerability first disclosed.
  2. 18-05-2026
    Last modifiedVulnerability information updated.

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, Cache Middleware does not skip caching for responses that declare per-user variance via Vary: Authorization or Vary: Cookie. As a result, a response cached for one authenticated user may be served to subsequent requests from different users. This vulnerability is fixed in 4.12.18.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

+0.13 pp

From 0.20% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.33%

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

Chainguard29 products
  • commercial-gitlab-rails-ee-19.1< 19.1.7-r3
  • commercial-gitlab-rails-ee-19.2< 19.2.7-r1
  • commercial-gitlab-rails-ee-19.3< 19.3.3-r1
  • commercial-gitlab-rails-ee-19.4< 19.4.1-r1
  • commercial-gitlab-rails-ee-fips-19.1All versions (No fix recorded)
Hono1 product
Honojs1 product
Npm1 product
  • hono< 4.12.18
Wolfi1 product
  • langfuse-3-worker< 3.176.0-r0

5 vendors · 33 products

References

4 links