CVE Explorer
CVE-2026-1002
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 las
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"io.vertx","product":"Eclipse Vert.x","repo":"https://github.com/eclipse-vertx/vert.x","vendor":"Eclipse Vert.x","versions":[{"lessThanOrEqual":"4.5.23","status":"affected","version":"4.0.0","versionType":"semver"},{"lessThanOrEqual":"5.0.6","status":"affected","version":"5.0.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:a2f25176bcaceb19b2e342d0f1bf77e3c2e1b89fc7903ba1fded87f9ef574f57 · sha256:78e1380210466867… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:a2f25176bcaceb19b2e342d0f1bf77e3c2e1b89fc7903ba1fded87f9ef574f57 · sha256:78e1380210466867… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-444","description":"CWE-444","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:a2f25176bcaceb19b2e342d0f1bf77e3c2e1b89fc7903ba1fded87f9ef574f57 · sha256:78e1380210466867… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["patch"],"url":"https://github.com/eclipse-vertx/vert.x/pull/5895"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a2f25176bcaceb19b2e342d0f1bf77e3c2e1b89fc7903ba1fded87f9ef574f57 · sha256:78e1380210466867… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/vert-x3/vertx-web/issues/2836"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a2f25176bcaceb19b2e342d0f1bf77e3c2e1b89fc7903ba1fded87f9ef574f57 · sha256:78e1380210466867… · /containers/adp/0/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.