CVE-2026-41727

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-06-10. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

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

Spring Kafka's retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retry_topic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the message was in the retry sequence.

Affected versions: Spring for Apache Kafka 4.0.0 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11.

CVSS v3
6.5
EG Score
6.5(high)
EPSS
15.0%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 27, 2026

Advisory Details (1)

Auto-updated Jun 12, 2026
No patch confirmed yet.
generic

CVE-2026-41727: In Spring for Apache Kafka, forged retry topic headers subvert retry routing and backoff behavior

https://spring.io/security/cve-2026-41727

Vendor Advisories for CVE-2026-41727(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 20× in last 7d / 88× 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.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-41727?
CVE-2026-41727 is a medium vulnerability published on June 10, 2026. Spring Kafka's retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retry_topic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the…
When was CVE-2026-41727 disclosed?
CVE-2026-41727 was first published in the National Vulnerability Database on June 10, 2026, with the most recent update on June 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41727 actively exploited?
CVE-2026-41727 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-41727?
CVE-2026-41727 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-41727?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41727, 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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