CVE-2026-40995

MEDIUMPre-NVD 5.45.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.4 from GitHub Security Advisory published 2026-06-11. A secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
5.4EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

X509AuthenticationProvider could issue a fully authenticated X509AuthenticationToken when a presented certificate mapped to UserDetails, without applying Spring Security's standard account lifecycle checks (disabled, locked, expired, or credentials-expired accounts).

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
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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 (value × EchelonGraph’s weight)
Severity54% × 45%
The EG Score, 5.4 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 11, 2026

Last Modified

September 4, 2026

Advisory Details (1)

Auto-updated Jun 14, 2026
Patch available.
Web page

CVE-2026-40995: X.509 authentication bypasses Spring Security account checks

https://spring.io/security/cve-2026-40995

Vendor Advisories for CVE-2026-40995(1)

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

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.springframework.ws:spring-ws-security3.1.0 ... 3.1.8 (9 versions)
  • 5.0.0 up to 5.0.2: fixed in 5.0.2
  • 4.1.0 up to 4.1.4: fixed in 4.1.4
  • 4.0.0 through 4.0.18: no fix on record
  • 3.1.0 through 3.1.8: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 28× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 204 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 104 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  4. 2026-10-12 16:09 UTCEG score recompute
  5. 2026-10-11 19:51 UTCEG score recompute
  6. 2026-10-11 17:04 UTCEG score recompute
  7. 2026-10-11 14:30 UTCEG score recompute
  8. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  13. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-10-03 08:39 UTCOSV refresh
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  23. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  24. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  25. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.1% · 4th percentile
Show 75 more
  1. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  2. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  3. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  4. 2026-09-14 04:12 UTCEG score recompute
  5. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  6. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  7. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  8. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  9. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  10. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  11. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  12. 2026-09-04 17:13 UTCEG score recompute
  13. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  14. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  15. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  16. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  17. 2026-08-31 00:07 UTCEG score recompute
  18. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  19. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  20. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  21. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  22. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  23. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  24. 2026-08-25 00:09 UTCEG score recompute
  25. 2026-08-23 10:44 UTCEG score recompute
  26. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  27. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  28. 2026-08-21 19:16 UTCEG score recompute
  29. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  30. 2026-08-20 17:16 UTCEG score recompute
  31. 2026-08-20 17:16 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  32. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  33. 2026-08-19 14:55 UTCEG score recompute
  34. 2026-08-19 14:55 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  35. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  36. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  37. 2026-08-16 23:18 UTCEG score recompute
  38. 2026-08-16 23:18 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  39. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  40. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  41. 2026-08-15 18:00 UTCEG score recompute
  42. 2026-08-15 18:00 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  43. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  44. 2026-08-14 15:18 UTCEG score recompute
  45. 2026-08-14 15:18 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  46. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  47. 2026-08-13 13:25 UTCEG score recompute
  48. 2026-08-13 13:25 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  49. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  50. 2026-08-12 11:31 UTCEG score recompute
  51. 2026-08-12 11:31 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  52. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  53. 2026-08-11 09:37 UTCEG score recompute
  54. 2026-08-11 09:37 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  55. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  56. 2026-08-10 07:43 UTCEG score recompute
  57. 2026-08-10 07:43 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  58. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  59. 2026-08-09 05:50 UTCEG score recompute
  60. 2026-08-09 05:50 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  61. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  62. 2026-08-08 03:57 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  63. 2026-08-07 02:04 UTCEG score recompute
  64. 2026-08-07 02:04 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  65. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  66. 2026-08-06 00:12 UTCEG score recompute
  67. 2026-08-06 00:12 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  68. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  69. 2026-08-04 22:19 UTCEG score recompute
  70. 2026-08-04 22:19 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  71. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  72. 2026-08-03 19:16 UTCEG score recompute
  73. 2026-08-03 19:16 UTCGHSA enrichmentGHSA-6mfm-98wv-32wm · GitHub CVSS 5.4
  74. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  75. 2026-08-02 17:23 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-40995?
CVE-2026-40995 is a medium-severity vulnerability; its CVE record was published on June 11, 2026. X509AuthenticationProvider could issue a fully authenticated X509AuthenticationToken when a presented certificate mapped to UserDetails, without applying Spring Security's standard account lifecycle checks (disabled, locked, expired, or credentials-expired accounts). Affected versions: Spring Web…
When was the CVE record for CVE-2026-40995 published?
The CVE record for CVE-2026-40995 was published on June 11, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 4, 2026; the record at its source may have been updated since.
Is CVE-2026-40995 actively exploited?
CVE-2026-40995 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-40995?
CVE-2026-40995 has a CVSS base score of 5.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-40995?
A fix for CVE-2026-40995 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-40995 are linked in the Vendor Advisories panel on this page.

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