CVE-2026-47898

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory published 2026-07-03. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library).

This issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018.

Users are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
25.2%
KEV
Not listed

Published

July 3, 2026

Last Modified

July 8, 2026

Advisory Details (2)

Auto-updated Jul 19, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-47898: Apache Lucene.Net: XXE vulnerability in Lucene.Net.Analysis.Common PatternParser

http://www.openwall.com/lists/oss-security/2026/07/03/3
generic
https://lists.apache.org/thread/7yn9k6sbbsk18yco5y2hszpcf8dst489

Vendor Advisories for CVE-2026-47898(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 8× in last 7d / 78× 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. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:17 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 02:29 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-17 05:28 UTCGHSA enrichment
  10. 2026-07-17 01:25 UTCGHSA enrichment
  11. 2026-07-16 21:24 UTCGHSA enrichment
  12. 2026-07-16 17:22 UTCGHSA enrichment
  13. 2026-07-16 17:03 UTCEPSS rescore
  14. 2026-07-16 12:28 UTCGHSA enrichment
  15. 2026-07-16 08:26 UTCGHSA enrichment
  16. 2026-07-16 04:25 UTCGHSA enrichment
  17. 2026-07-16 00:23 UTCGHSA enrichment
  18. 2026-07-15 20:21 UTCGHSA enrichment
  19. 2026-07-15 16:57 UTCEPSS rescore
  20. 2026-07-15 16:19 UTCGHSA enrichment
  21. 2026-07-15 12:17 UTCGHSA enrichment
  22. 2026-07-15 08:14 UTCGHSA enrichment
  23. 2026-07-15 04:13 UTCGHSA enrichment
  24. 2026-07-15 02:00 UTCEPSS rescore
  25. 2026-07-15 00:10 UTCGHSA enrichment
Show 53 more
  1. 2026-07-14 20:08 UTCGHSA enrichment
  2. 2026-07-14 16:06 UTCGHSA enrichment
  3. 2026-07-14 12:05 UTCGHSA enrichment
  4. 2026-07-14 08:03 UTCGHSA enrichment
  5. 2026-07-14 03:46 UTCGHSA enrichment
  6. 2026-07-13 23:45 UTCGHSA enrichment
  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-13 19:43 UTCGHSA enrichment
  9. 2026-07-13 15:41 UTCGHSA enrichment
  10. 2026-07-13 11:39 UTCGHSA enrichment
  11. 2026-07-13 07:34 UTCGHSA enrichment
  12. 2026-07-13 06:13 UTCEPSS rescore
  13. 2026-07-13 03:32 UTCGHSA enrichment
  14. 2026-07-12 23:30 UTCGHSA enrichment
  15. 2026-07-12 19:29 UTCGHSA enrichment
  16. 2026-07-12 15:27 UTCGHSA enrichment
  17. 2026-07-12 11:25 UTCGHSA enrichment
  18. 2026-07-12 07:23 UTCGHSA enrichment
  19. 2026-07-12 05:46 UTCEPSS rescore
  20. 2026-07-12 03:21 UTCGHSA enrichment
  21. 2026-07-11 23:20 UTCGHSA enrichment
  22. 2026-07-11 19:18 UTCGHSA enrichment
  23. 2026-07-11 15:17 UTCGHSA enrichment
  24. 2026-07-11 11:15 UTCGHSA enrichment
  25. 2026-07-11 08:27 UTCEPSS rescore
  26. 2026-07-11 07:13 UTCGHSA enrichment
  27. 2026-07-11 03:11 UTCGHSA enrichment
  28. 2026-07-10 23:09 UTCGHSA enrichment
  29. 2026-07-10 19:06 UTCGHSA enrichment
  30. 2026-07-10 15:04 UTCGHSA enrichment
  31. 2026-07-10 10:59 UTCGHSA enrichment
  32. 2026-07-10 06:56 UTCGHSA enrichment
  33. 2026-07-10 02:55 UTCGHSA enrichment
  34. 2026-07-09 22:50 UTCGHSA enrichment
  35. 2026-07-09 19:10 UTCEPSS rescore
  36. 2026-07-09 18:48 UTCGHSA enrichment
  37. 2026-07-09 14:47 UTCGHSA enrichment
  38. 2026-07-09 10:43 UTCGHSA enrichment
  39. 2026-07-09 06:36 UTCEG score recompute▲ 5.80
  40. 2026-07-09 06:36 UTCGHSA enrichment
  41. 2026-07-08 18:52 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
  42. 2026-07-08 15:16 UTCEPSS rescore
  43. 2026-07-08 06:55 UTCGHSA enrichment
  44. 2026-07-07 13:46 UTCEPSS rescore
  45. 2026-07-07 07:13 UTCGHSA enrichment
  46. 2026-07-06 16:27 UTCEPSS rescore
  47. 2026-07-06 07:31 UTCGHSA enrichment
  48. 2026-07-06 02:23 UTCEPSS rescore
  49. 2026-07-05 07:50 UTCGHSA enrichment
  50. 2026-07-05 02:30 UTCEPSS rescore
  51. 2026-07-04 08:09 UTCGHSA enrichment
  52. 2026-07-03 08:27 UTCEG score recompute
  53. 2026-07-03 08:26 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-47898?
CVE-2026-47898 is a critical vulnerability published on July 3, 2026. Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library). This issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018. Users are recommended to upgrade to version 4.8.0-beta00018, which fixes…
When was CVE-2026-47898 disclosed?
CVE-2026-47898 was first published in the National Vulnerability Database on July 3, 2026, with the most recent update on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47898 actively exploited?
CVE-2026-47898 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-47898?
CVE-2026-47898 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-47898?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47898, 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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