GHSA-cphf-4846-3xx9

Suggest an improvement
Source
https://github.com/advisories/GHSA-cphf-4846-3xx9
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-cphf-4846-3xx9/GHSA-cphf-4846-3xx9.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-cphf-4846-3xx9
Aliases
  • CVE-2026-1002
Downstream
Published
2026-01-15T21:31:48Z
Modified
2026-01-15T23:11:30.469666Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L CVSS Calculator
Summary
Vert.x Web static handler component cache can be manipulated to deny the access to static files
Details

The Vert.x Web static handler component cache can be manipulated to deny the access to static files served by the handler using specifically crafted request URI.

The issue comes from an improper implementation of the C. rule of section 5.2.4 of RFC3986 and is fixed in Vert.x Core component (used by Vert.x Web): https://github.com/eclipse-vertx/vert.x/pull/5895

Steps to reproduce Given a file served by the static handler, craft an URI that introduces a string like bar%2F..%2F after the last / char to deny the access to the URI with an HTTP 404 response. For example https://example.com/foo/index.html can be denied with https://example.com/foo/bar%2F..%2Findex.html

Mitgation Disabling Static Handler cache fixes the issue.

StaticHandler staticHandler = StaticHandler.create().setCachingEnabled(false);

Database specific 
{
    "cwe_ids": [
        "CWE-444"
    ],
    "severity": "MODERATE",
    "github_reviewed_at": "2026-01-15T22:51:27Z",
    "github_reviewed": true,
    "nvd_published_at": "2026-01-15T21:16:05Z"
}
References

Affected packages

Maven / io.vertx:vertx-core

Package

Name
io.vertx:vertx-core
View open source insights on deps.dev
Purl
pkg:maven/io.vertx/vertx-core

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.5.24

Affected versions

2.*

2.0.0-beta1
2.0.0-beta2
2.0.0-beta3
2.0.0-beta4
2.0.0-beta5
2.0.0-CR1
2.0.0-CR2
2.0.0-CR3
2.0.0-final
2.0.1-final
2.0.2-final
2.1M1
2.1M2
2.1M3
2.1M4
2.1M5
2.1RC1
2.1RC2
2.1RC3
2.1
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6

3.*

3.0.0-milestone2
3.0.0-milestone3
3.0.0-milestone4
3.0.0-milestone5
3.0.0-milestone6
3.0.0
3.0.0-dev_preview1
3.1.0
3.2.0
3.2.1
3.3.0.CR1
3.3.0.CR2
3.3.0
3.3.1
3.3.2
3.3.3
3.4.0.Beta1
3.4.0
3.4.1
3.4.2
3.5.0.Beta1
3.5.0
3.5.1
3.5.2.CR1
3.5.2.CR2
3.5.2.CR3
3.5.2
3.5.3.CR1
3.5.3
3.5.4
3.6.0.CR1
3.6.0.CR2
3.6.0
3.6.1
3.6.2
3.6.3
3.7.0
3.7.1
3.8.0
3.8.1
3.8.2
3.8.3
3.8.4
3.8.5
3.9.0
3.9.1
3.9.2
3.9.3
3.9.4
3.9.5
3.9.6
3.9.7
3.9.8
3.9.9
3.9.10
3.9.11
3.9.12
3.9.13
3.9.14
3.9.15
3.9.16

4.*

4.0.0-milestone1
4.0.0-milestone2
4.0.0-milestone3
4.0.0-milestone4
4.0.0-milestone5
4.0.0.Beta1
4.0.0.Beta2
4.0.0.Beta3
4.0.0.CR1
4.0.0.CR2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0.Beta1
4.1.0.CR1
4.1.0.CR2
4.1.0
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.1.7
4.1.8
4.2.0.Beta1
4.2.0.CR1
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.3.0
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.3.7
4.3.8
4.4.0
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.4.8
4.4.9
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.7
4.5.8
4.5.9
4.5.10
4.5.11
4.5.12
4.5.13
4.5.14
4.5.15
4.5.16
4.5.17
4.5.18
4.5.19
4.5.20
4.5.21
4.5.22
4.5.23

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-cphf-4846-3xx9/GHSA-cphf-4846-3xx9.json"