Deserialization in Alldatacenter Alldata
CVE-2026-19826
A vulnerability was detected in alldatacenter alldata up to 0.6.8. This affects the function Hessian2Input.readObject of the file /serialize/impl/HessianSerializer.java of the component xxl-rpc Listener. The manipulation results in deserialization. The attack may be performed from remote. The exploit is now public and may be used. The project closed the issue report as "not planned" without any further explanation.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.006 (44.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.006 · change: +0.002
Affected products
- Alldatacenter Alldata — versions 0.6.0, 0.6.1, 0.6.2
Weakness classification (CWE)
References
- github.com/alldatacenter/alldata/ (product)
- github.com/alldatacenter/alldata/issues/832 (issue-tracking, exploit)
- vuldb.com/cve/CVE-2026-19826 (third-party-advisory)
- vuldb.com/submit/870236 (third-party-advisory)
- vuldb.com/vuln/389959 (technical-description, vdb-entry)
- vuldb.com/vuln/389959/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-19826?
- CVE-2026-19826 is a high-severity vulnerability in Alldatacenter Alldata, classified under Improper Input Validation. CVSS score: 7.3/10. Published 2026-08-14.
- How severe is CVE-2026-19826?
- High severity. CVSS v3 base score is 7.3 out of 10.