CVE Explorer
CVE-2026-3960
A critical remote code execution vulnerability exists in the unauthenticated REST API endpoint /99/ImportSQLTable in H2O-3 version 3.46.0.9 and prior. The vulnerability arises due to insufficient security controls in the parameter blacklist mechanism, which only targets MySQL JDBC driver-specific dangerous parameters. An attacker can bypass these controls by switching the JDBC URL protocol to jdbc:postgresql: and exploiting PostgreSQL JDBC driver-specific parameters such as socketFactory and soc
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"h2oai/h2o-3","vendor":"h2oai","versions":[{"lessThan":"3.46.0.10","status":"affected","version":"unspecified","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:fb79aadd2a53a1f8b80f76e550a3d330e7186691f722555537a20740d03adea9 · sha256:27e9deb818e5184e… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"metric_type":"cvssV3_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:fb79aadd2a53a1f8b80f76e550a3d330e7186691f722555537a20740d03adea9 · sha256:27e9deb818e5184e… · /containers/cna/metrics/0/cvssV3_0
CWE assertions
1 source assertion{"cweId":"CWE-94","description":"CWE-94 Improper Control of Generation of Code","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:fb79aadd2a53a1f8b80f76e550a3d330e7186691f722555537a20740d03adea9 · sha256:27e9deb818e5184e… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"url":"https://github.com/h2oai/h2o-3/commit/b9ae2d3c5220db2dc53753357a783e590364d044"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:fb79aadd2a53a1f8b80f76e550a3d330e7186691f722555537a20740d03adea9 · sha256:27e9deb818e5184e… · /containers/cna/references/1
{"url":"https://huntr.com/bounties/6954fe04-b905-453f-8c53-205ac8377e0d"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:fb79aadd2a53a1f8b80f76e550a3d330e7186691f722555537a20740d03adea9 · sha256:27e9deb818e5184e… · /containers/cna/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.