CVE-2026-47891

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-27. 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 week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

A Spring WebFlux application that relies on the Aalto XML processor to parse XML input does not correctly enforce the maxInMemorySize limit. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.25.RELEASE and earlier

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 27, 2026

Last Modified

September 2, 2026

Advisory Details (1)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

Spring Framework maxInMemorySize Bypassed in Jaxb2Decoder

https://spring.io/security/cve-2026-47891

Vendor Advisories for CVE-2026-47891(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libspring-java4.3.30-2, 4.3.30-3, 4.3.30-4——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libspring-java4.3.30-3, 4.3.30-4——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libspring-java4.3.30-3, 4.3.30-4——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 48× in last 7d / 179× 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 179 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-47891?
CVE-2026-47891 is a critical vulnerability published on August 27, 2026. A Spring WebFlux application that relies on the Aalto XML processor to parse XML input does not correctly enforce the maxInMemorySize limit. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49…
When was CVE-2026-47891 disclosed?
CVE-2026-47891 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47891 actively exploited?
CVE-2026-47891 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 78.1% of all scored CVEs.
What is the CVSS score of CVE-2026-47891?
CVE-2026-47891 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-47891?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47891, 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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