CVE-2026-59278

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

Score 6.5 from GitHub Security Advisory published 2026-08-27. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

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

The CVE record's CNA (VMware by Broadcom) lists Spring for Apache Kafka versions 4.0.0 up to and including 4.0.6, 3.0.0 up to and including 3.3.16, 2.9.0 up to and including 2.9.14 and up to and including 2.8.12 as affected. No release containing a fix is confirmed on record.

JsonKafkaHeaderMapper and DefaultKafkaHeaderMapper include java.net in their default trusted packages list. When these mappers are used — which is the default configuration for all @KafkaListener consumers — an external Kafka producer can inject a java.net.InetAddress type via the spring_json_header_types message header. Spring for Apache Kafka 4.1.0 Spring for Apache Kafka 4.0.0 - 4.0.6 Spring for Apache Kafka 3.0.0 - 3.3.16 Spring for Apache Kafka 2.9.0 - 2.9.14 Spring for Apache Kafka 2.8.12 and earlier

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100

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)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
17th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

August 27, 2026

Last Modified

September 1, 2026

Advisory Details (1)

Auto-updated Aug 27, 2026
No fix on record yet.
Web page

In Spring for Apache Kafka, SSRF via DNS resolution triggered by untrusted java.net types in header mapper default trusted packages

https://spring.io/security/cve-2026-59278

Vendor Advisories for CVE-2026-59278(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 17× in last 7d / 80× 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 136 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 36 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  3. 2026-10-12 15:52 UTCEG score recompute
  4. 2026-10-11 19:36 UTCEG score recompute
  5. 2026-10-11 16:51 UTCEG score recompute
  6. 2026-10-11 14:14 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  9. 2026-10-10 05:24 UTCEG score recompute
  10. 2026-10-10 05:24 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  12. 2026-10-09 03:12 UTCEG score recompute
  13. 2026-10-09 03:12 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  14. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  15. 2026-10-08 01:24 UTCEG score recompute
  16. 2026-10-08 01:24 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  18. 2026-10-06 23:40 UTCEG score recompute
  19. 2026-10-06 23:40 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  21. 2026-10-06 00:56 UTCEG score recompute
  22. 2026-10-06 00:56 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  23. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  24. 2026-10-05 01:23 UTCEG score recompute
  25. 2026-10-05 01:23 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
Show 75 more
  1. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  2. 2026-10-04 01:55 UTCEG score recompute
  3. 2026-10-04 01:55 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  4. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  5. 2026-10-03 02:28 UTCEG score recompute
  6. 2026-10-03 02:28 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  7. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  8. 2026-10-02 03:39 UTCEG score recompute
  9. 2026-10-02 03:39 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  10. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  11. 2026-10-01 03:56 UTCEG score recompute
  12. 2026-10-01 03:56 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  13. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  14. 2026-09-30 05:10 UTCEG score recompute
  15. 2026-09-30 05:10 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  16. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  17. 2026-09-28 21:19 UTCEG score recompute
  18. 2026-09-28 21:19 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  19. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  20. 2026-09-27 18:12 UTCEG score recompute
  21. 2026-09-27 18:12 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  22. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  23. 2026-09-26 19:25 UTCEG score recompute
  24. 2026-09-26 19:25 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  25. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  26. 2026-09-25 11:44 UTCEG score recompute
  27. 2026-09-25 11:44 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  28. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  29. 2026-09-24 12:20 UTCEG score recompute
  30. 2026-09-24 12:20 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  31. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  32. 2026-09-23 13:32 UTCEG score recompute
  33. 2026-09-23 13:32 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  34. 2026-09-22 14:47 UTCEG score recompute
  35. 2026-09-22 14:47 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  36. 2026-09-21 16:01 UTCEG score recompute
  37. 2026-09-21 16:01 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  38. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  39. 2026-09-20 17:16 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  40. 2026-09-19 18:27 UTCEG score recompute
  41. 2026-09-19 18:27 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  42. 2026-09-18 19:42 UTCEG score recompute
  43. 2026-09-18 19:42 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  44. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  45. 2026-09-17 20:55 UTCEG score recompute
  46. 2026-09-17 20:55 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  47. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  48. 2026-09-16 21:31 UTCEG score recompute
  49. 2026-09-16 21:31 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  50. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  51. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  52. 2026-09-15 22:25 UTCEG score recompute
  53. 2026-09-15 22:25 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  54. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  55. 2026-09-14 23:39 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  56. 2026-09-14 00:27 UTCEG score recompute
  57. 2026-09-14 00:27 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  58. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  59. 2026-09-13 01:42 UTCEG score recompute
  60. 2026-09-13 01:42 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  61. 2026-09-12 02:56 UTCEG score recompute
  62. 2026-09-12 02:56 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  63. 2026-09-11 04:10 UTCEG score recompute
  64. 2026-09-11 04:10 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  65. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  66. 2026-09-10 05:25 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  67. 2026-09-09 06:40 UTCEG score recompute
  68. 2026-09-09 06:39 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  69. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  70. 2026-09-08 07:54 UTCEG score recompute
  71. 2026-09-08 07:54 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  72. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  73. 2026-09-07 09:04 UTCEG score recompute
  74. 2026-09-07 09:04 UTCGHSA enrichmentGHSA-f6gf-8w3m-3498 · GitHub CVSS 6.5
  75. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile

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Frequently asked(5)

What is CVE-2026-59278?
CVE-2026-59278 is a medium-severity vulnerability; its CVE record was published on August 27, 2026. JsonKafkaHeaderMapper and DefaultKafkaHeaderMapper include java.net in their default trusted packages list. When these mappers are used — which is the default configuration for all @KafkaListener consumers — an external Kafka producer can inject a java.net.InetAddress type via the…
When was the CVE record for CVE-2026-59278 published?
The CVE record for CVE-2026-59278 was published on August 27, 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 1, 2026; the record at its source may have been updated since.
Is CVE-2026-59278 actively exploited?
CVE-2026-59278 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (17th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-59278?
CVE-2026-59278 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-59278?
No fix for CVE-2026-59278 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VMware by Broadcom) lists Spring for Apache Kafka versions 4.0.0 up to and including 4.0.6, 3.0.0 up to and including 3.3.16, 2.9.0 up to and including 2.9.14 and up to and including 2.8.12 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-59278 are linked in the Vendor Advisories panel on this page.

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