CVE-2026-19826: alldatacenter alldata · Improper Input Validation
Source GCVE Database
Public exploit available · CVSS 6.9 Medium.
Data as of 12 Nov 2026, 23:24 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 14 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| alldatacenteralldata | Affected
| Fixed in– |
GitHuballdatacenter/alldatapkg:github/alldatacenter/alldataOther threats | Affected
| Fixed in– |
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Description
CVE-2026-19826 is a high-severity vulnerability in alldatacenter alldata versions up to 0.6.8. It affects the Hessian2Input.readObject function in the /serialize/impl/HessianSerializer.java file of the xxl-rpc Listener component. The vulnerability allows remote attackers to perform deserialization attacks. Exploit code is publicly available. The project has closed the issue report as "not planned" without providing a fix.
References
- nvd.nist.gov/vuln/detail/CVE-2026-19826 (opens in a new tab)
- github.com/alldatacenter/alldata/issues/832 (opens in a new tab)
- github.com/alldatacenter/alldata (opens in a new tab)
- vuldb.com/cve/CVE-2026-19826 (opens in a new tab)
- vuldb.com/submit/870236 (opens in a new tab)
- vuldb.com/vuln/389959 (opens in a new tab)
- vuldb.com/vuln/389959/cti (opens in a new tab)