CVE-2026-59313

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.

Spring MVC applications using the functional web framework are vulnerable to stream corruption when using Server-Sent Events (SSE). 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

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
33%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 31, 2026

Advisory Details (1)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

Server Sent Event stream corruption in Spring MVC functional web framework

https://spring.io/security/cve-2026-59313

Vendor Advisories for CVE-2026-59313(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 54× in last 7d / 171× 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 171 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-59313?
CVE-2026-59313 is a critical vulnerability published on August 27, 2026. Spring MVC applications using the functional web framework are vulnerable to stream corruption when using Server-Sent Events (SSE). 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-2026-59313 disclosed?
CVE-2026-59313 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59313 actively exploited?
CVE-2026-59313 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 67.4% of all scored CVEs.
What is the CVSS score of CVE-2026-59313?
CVE-2026-59313 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-59313?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59313, 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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