CVE-2026-52439

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-23. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

An issue in xiandafu beetl 3.20.2 allows a remote attacker to execute arbitrary code via the type.new function and the property reflection mechanism

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
75(Attend)
EG Risk 75/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

July 23, 2026

Last Modified

July 24, 2026

Advisory Details (2)

Auto-updated Jul 25, 2026
No patch confirmed yet.
generic

Beetl <= 3.20.2 在默认NATIVE_CALL=false安全配置下存在表达式注入风险，可造成远程代码执行(RCE) · Issue #IJO1HM · 闲.大赋(李家智)/Beetl - Gitee.com

https://gitee.com/xiandafu/beetl/issues/IJO1HM
generic

Beetl: Beetl3.0,模板引擎。从2010年开始研发开源

https://gitee.com/xiandafu/beetl

Vendor Advisories for CVE-2026-52439(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 23× 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. 2026-07-27 19:15 UTCGHSA enrichment
  2. 2026-07-27 15:07 UTCEG score recompute
  3. 2026-07-27 15:07 UTCGHSA enrichment
  4. 2026-07-27 10:40 UTCGHSA enrichment
  5. 2026-07-27 06:32 UTCGHSA enrichment
  6. 2026-07-27 02:25 UTCGHSA enrichment
  7. 2026-07-26 22:18 UTCGHSA enrichment
  8. 2026-07-26 18:11 UTCEG score recompute
  9. 2026-07-26 18:11 UTCGHSA enrichment
  10. 2026-07-26 14:54 UTCEPSS rescore
  11. 2026-07-26 13:54 UTCEG score recompute
  12. 2026-07-26 13:54 UTCGHSA enrichment
  13. 2026-07-26 09:46 UTCGHSA enrichment
  14. 2026-07-26 03:22 UTCEG score recompute
  15. 2026-07-26 03:21 UTCGHSA enrichment
  16. 2026-07-25 14:18 UTCEPSS rescore
  17. 2026-07-24 19:43 UTCEG score recompute▲ 9.80
  18. 2026-07-24 19:42 UTCGHSA enrichment
  19. 2026-07-24 19:42 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  20. 2026-07-24 14:18 UTCEPSS rescore
  21. 2026-07-23 22:11 UTCNVD update
  22. 2026-07-23 20:47 UTCEG score recompute
  23. 2026-07-23 20:46 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-52439?
CVE-2026-52439 is a critical vulnerability published on July 23, 2026. An issue in xiandafu beetl 3.20.2 allows a remote attacker to execute arbitrary code via the type.new function and the property reflection mechanism
When was CVE-2026-52439 disclosed?
CVE-2026-52439 was first published in the National Vulnerability Database on July 23, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52439 actively exploited?
CVE-2026-52439 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 59.2% of all scored CVEs.
What is the CVSS score of CVE-2026-52439?
CVE-2026-52439 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-52439?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52439, 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

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