CVE-2026-19826

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-08-14. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
64(Attend)
EG Risk 64/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 14, 2026

Last Modified

August 18, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

[Bug Report] Unauthenticated Hessian deserialization RCE via the xxl-rpc listener in `service-data-dts` · Issue #832 · alldatacenter/alldata · GitHub

https://github.com/alldatacenter/alldata/issues/832
generic

GitHub - alldatacenter/alldata: 🔥🔥 AllData可定义数据中台，以数据平台为底座，以数据中台为桥梁，以机器学习平台为工厂，以大模型应用为上游产品，提供全链路数字化解决方案。产品正式演示体验、社群咨询、商务采购：https://docs.qq.com/doc/DVHlkSEtvVXVCdEFo · GitHub

https://github.com/alldatacenter/alldata/

Vendor Advisories for CVE-2026-19826(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 35× in last 7d / 35× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-21 02:33 UTCEG score recompute
  2. 2026-08-21 02:33 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 14:36 UTCGHSA enrichment
  5. 2026-08-20 02:43 UTCEG score recompute
  6. 2026-08-20 02:43 UTCGHSA enrichment
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-19 14:49 UTCGHSA enrichment
  9. 2026-08-19 02:54 UTCGHSA enrichment
  10. 2026-08-18 14:58 UTCEG score recompute
  11. 2026-08-18 14:58 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 02:20 UTCEG score recompute
  14. 2026-08-18 02:20 UTCGHSA enrichment
  15. 2026-08-18 02:19 UTCNVD updateCVSS v4 → 5.5
  16. 2026-08-18 02:16 UTCMITRE cvelistV5CVSS v4 → 6.9
  17. 2026-08-17 19:07 UTCEG score recompute
  18. 2026-08-17 19:06 UTCGHSA enrichment
  19. 2026-08-17 19:05 UTCGHSA enrichment
  20. 2026-08-17 13:47 UTCEPSS rescore
  21. 2026-08-17 06:51 UTCGHSA enrichment
  22. 2026-08-16 18:58 UTCEG score recompute
  23. 2026-08-16 18:58 UTCGHSA enrichment
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 06:57 UTCEG score recompute
Show 10 more
  1. 2026-08-16 06:57 UTCGHSA enrichment
  2. 2026-08-16 02:14 UTCEPSS rescore
  3. 2026-08-15 19:04 UTCGHSA enrichment
  4. 2026-08-15 07:10 UTCGHSA enrichment
  5. 2026-08-14 19:16 UTCEG score recompute
  6. 2026-08-14 19:16 UTCGHSA enrichment
  7. 2026-08-14 13:26 UTCEG score recompute
  8. 2026-08-14 13:26 UTCNVD updateCVSS v4 → 5.5
  9. 2026-08-14 13:14 UTCEG score recompute
  10. 2026-08-14 13:13 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-19826?
CVE-2026-19826 is a high vulnerability published on August 14, 2026. 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…
When was CVE-2026-19826 disclosed?
CVE-2026-19826 was first published in the National Vulnerability Database on August 14, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19826 actively exploited?
CVE-2026-19826 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 74.1% of all scored CVEs.
What is the CVSS score of CVE-2026-19826?
CVE-2026-19826 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-19826?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19826, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-19826

Explore →

Is Your Infrastructure Affected by CVE-2026-19826?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs