CVE-2026-52439

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM 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 — 3 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(medium)
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
42%
KEV
Not listed

Published

July 23, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Sep 9, 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 29× in last 7d / 148× 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.

Showing the most recent 100 of 326 total refreshes for this CVE.

  1. 2026-09-14 16:43 UTCGHSA enrichment
  2. 2026-09-14 10:52 UTCGHSA enrichment
  3. 2026-09-14 06:45 UTCGHSA enrichment
  4. 2026-09-14 02:38 UTCGHSA enrichment
  5. 2026-09-13 22:25 UTCGHSA enrichment
  6. 2026-09-13 17:49 UTCEG score recompute
  7. 2026-09-13 17:49 UTCGHSA enrichment
  8. 2026-09-13 16:47 UTCEPSS rescore
  9. 2026-09-13 13:41 UTCGHSA enrichment
  10. 2026-09-13 09:34 UTCGHSA enrichment
  11. 2026-09-13 05:27 UTCGHSA enrichment
  12. 2026-09-13 01:21 UTCGHSA enrichment
  13. 2026-09-12 20:52 UTCGHSA enrichment
  14. 2026-09-12 16:38 UTCEG score recompute
  15. 2026-09-12 16:38 UTCGHSA enrichment
  16. 2026-09-12 12:31 UTCGHSA enrichment
  17. 2026-09-12 06:38 UTCGHSA enrichment
  18. 2026-09-12 02:20 UTCGHSA enrichment
  19. 2026-09-11 22:06 UTCGHSA enrichment
  20. 2026-09-11 17:51 UTCEG score recompute
  21. 2026-09-11 17:51 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 07:23 UTCGHSA enrichment
  24. 2026-09-11 03:16 UTCGHSA enrichment
  25. 2026-09-10 21:12 UTCEG score recompute
Show 75 more
  1. 2026-09-10 21:12 UTCGHSA enrichment
  2. 2026-09-10 09:35 UTCEPSS rescore
  3. 2026-09-09 09:10 UTCEG score recompute
  4. 2026-09-09 09:10 UTCGHSA enrichment
  5. 2026-09-08 22:01 UTCEPSS rescore
  6. 2026-09-08 01:46 UTCGHSA enrichment
  7. 2026-09-07 21:39 UTCEG score recompute
  8. 2026-09-07 21:39 UTCGHSA enrichment
  9. 2026-09-07 16:01 UTCEPSS rescore
  10. 2026-09-06 16:53 UTCEG score recompute
  11. 2026-09-06 16:53 UTCGHSA enrichment
  12. 2026-09-06 13:47 UTCEPSS rescore
  13. 2026-09-06 12:45 UTCGHSA enrichment
  14. 2026-09-06 08:38 UTCGHSA enrichment
  15. 2026-09-06 03:57 UTCGHSA enrichment
  16. 2026-09-05 23:39 UTCGHSA enrichment
  17. 2026-09-05 19:32 UTCEG score recompute
  18. 2026-09-05 19:32 UTCGHSA enrichment
  19. 2026-09-05 07:05 UTCGHSA enrichment
  20. 2026-09-04 17:48 UTCEG score recompute
  21. 2026-09-04 17:47 UTCGHSA enrichment
  22. 2026-09-04 13:39 UTCEG score recompute
  23. 2026-09-04 13:39 UTCGHSA enrichment
  24. 2026-09-04 05:06 UTCEPSS rescore
  25. 2026-09-02 14:12 UTCEPSS rescore
  26. 2026-09-01 23:29 UTCEG score recompute
  27. 2026-09-01 23:29 UTCGHSA enrichment
  28. 2026-09-01 13:54 UTCEPSS rescore
  29. 2026-09-01 04:40 UTCEPSS rescore
  30. 2026-08-31 07:54 UTCGHSA enrichment
  31. 2026-08-31 03:02 UTCGHSA enrichment
  32. 2026-08-30 22:54 UTCEG score recompute
  33. 2026-08-30 22:54 UTCGHSA enrichment
  34. 2026-08-30 19:17 UTCEPSS rescore
  35. 2026-08-30 18:48 UTCGHSA enrichment
  36. 2026-08-30 14:41 UTCGHSA enrichment
  37. 2026-08-30 10:27 UTCGHSA enrichment
  38. 2026-08-30 04:55 UTCEG score recompute
  39. 2026-08-30 04:55 UTCGHSA enrichment
  40. 2026-08-30 01:22 UTCEPSS rescore
  41. 2026-08-30 00:47 UTCEG score recompute
  42. 2026-08-30 00:47 UTCGHSA enrichment
  43. 2026-08-28 21:41 UTCEPSS rescore
  44. 2026-08-28 01:32 UTCGHSA enrichment
  45. 2026-08-27 21:09 UTCGHSA enrichment
  46. 2026-08-27 14:30 UTCEG score recompute
  47. 2026-08-27 14:30 UTCGHSA enrichment
  48. 2026-08-27 14:25 UTCEPSS rescore
  49. 2026-08-27 10:15 UTCGHSA enrichment
  50. 2026-08-27 04:47 UTCGHSA enrichment
  51. 2026-08-27 00:07 UTCGHSA enrichment
  52. 2026-08-26 19:57 UTCEG score recompute
  53. 2026-08-26 19:57 UTCGHSA enrichment
  54. 2026-08-26 14:46 UTCEPSS rescore
  55. 2026-08-26 11:56 UTCGHSA enrichment
  56. 2026-08-26 07:50 UTCGHSA enrichment
  57. 2026-08-26 03:40 UTCGHSA enrichment
  58. 2026-08-25 23:33 UTCGHSA enrichment
  59. 2026-08-25 19:05 UTCGHSA enrichment
  60. 2026-08-25 14:57 UTCEG score recompute
  61. 2026-08-25 14:57 UTCGHSA enrichment
  62. 2026-08-25 13:49 UTCEPSS rescore
  63. 2026-08-25 10:48 UTCGHSA enrichment
  64. 2026-08-25 06:42 UTCGHSA enrichment
  65. 2026-08-25 02:26 UTCGHSA enrichment
  66. 2026-08-24 22:20 UTCGHSA enrichment
  67. 2026-08-24 18:14 UTCEG score recompute
  68. 2026-08-24 18:14 UTCGHSA enrichment
  69. 2026-08-24 13:36 UTCGHSA enrichment
  70. 2026-08-24 09:29 UTCEG score recompute
  71. 2026-08-24 09:29 UTCGHSA enrichment
  72. 2026-08-24 05:22 UTCGHSA enrichment
  73. 2026-08-24 01:15 UTCGHSA enrichment
  74. 2026-08-23 21:08 UTCGHSA enrichment
  75. 2026-08-23 17:01 UTCGHSA enrichment

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 28, 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 57.7% 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.

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