CVE-2026-40999

HIGHPre-NVD 8.68.6—
EchelonGraph scoreHIGH confidence

Score 8.6 from GitHub Security Advisory (severity: HIGH) published 2026-06-11. a secondary CVSS source baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.6Exploit: NoneExposed: 0

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

When WS-Addressing is used with non-anonymous ReplyTo or FaultTo addresses, Spring WS may initiate outbound connections through configured WebServiceMessageSender instances to destinations taken directly from request headers without verifying that those destinations are safe to connect to.

Affected versions: Spring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8.

CVSS v3
8.6
EG Score
8.6(high)
EPSS
30.3%
KEV
Not listed

Published

June 11, 2026

Last Modified

June 23, 2026

Advisory Details (1)

Auto-updated Jun 11, 2026
No patch confirmed yet.
generic

CVE-2026-40999: Spring WS SSRF via unvalidated WS-Addressing reply destinations

https://spring.io/security/cve-2026-40999

Vendor Advisories for CVE-2026-40999(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 31× in last 7d / 123× 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 123 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-40999?
CVE-2026-40999 is a high vulnerability published on June 11, 2026. When WS-Addressing is used with non-anonymous ReplyTo or FaultTo addresses, Spring WS may initiate outbound connections through configured WebServiceMessageSender instances to destinations taken directly from request headers without verifying that those destinations are safe to connect to. Affected…
When was CVE-2026-40999 disclosed?
CVE-2026-40999 was first published in the National Vulnerability Database on June 11, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40999 actively exploited?
CVE-2026-40999 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-40999?
CVE-2026-40999 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-40999?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40999, 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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