CVE-2026-41185

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-05-28. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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.

When Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (stdinData) at INFO level to /var/log/calico/cni/cni.log on every CNI ADD and DEL invocation — once per pod scheduled or terminated on the node. When the cluster is deployed using token-based Kubernetes authentication, this log entry contains the ServiceAccount token, client key, and certificate authority in plaintext. Any principal with read access to /var/log/calico/cni/cni.log on a node  can read these logs and extract the credentials, which grant cluster-wide Calico networking admin privileges.

CVSS v3
6.5
EG Score
6.5(medium)
EPSS
24.3%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 5, 2026

Advisory Details (4)

Auto-updated Jun 13, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

Security Bulletins – TTA-2026-002, CVE-2026-41185 | Tigera – Creator of Calico

https://www.tigera.io/security-bulletins/tta-2026-002/
github_pr

[release 3.31] Sanitize log output in CNI plugin (pick #12502)

Fix merged in projectcalico/calico PR #12527 on 2026-04-17 — awaiting tagged release

https://github.com/projectcalico/calico/pull/12527
github_pr

[release 3.32] Sanitize log output in CNI plugin (pick #12502)

Fix merged in projectcalico/calico PR #12526 on 2026-04-17 — awaiting tagged release

https://github.com/projectcalico/calico/pull/12526
github_pr

Sanitize log output in CNI plugin

Fix merged in projectcalico/calico PR #12502 on 2026-04-17 — awaiting tagged release

https://github.com/projectcalico/calico/pull/12502

Vendor Advisories for CVE-2026-41185(1)

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

Affected Packages

(2 across 1 ecosystem)
Go(2)
PackageVulnerable rangeFixed inDependents
github.com/projectcalico/calico—3.31.6—
github.com/projectcalico/calico/v3———

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 60× 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. 2026-07-16 02:55 UTCEG score recompute
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-13 22:30 UTCEPSS rescore
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  8. 2026-07-12 05:46 UTCEPSS rescore
  9. 2026-07-11 19:52 UTCEG score recompute
  10. 2026-07-11 08:27 UTCEPSS rescore
  11. 2026-07-09 19:10 UTCEPSS rescore
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  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-02 12:59 UTCEG score recompute
  22. 2026-07-02 12:59 UTCGHSA enrichment
  23. 2026-07-01 15:06 UTCEPSS rescore
  24. 2026-07-01 02:55 UTCEG score recompute
  25. 2026-07-01 02:55 UTCGHSA enrichment
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  1. 2026-06-30 23:22 UTCEPSS rescore
  2. 2026-06-29 19:52 UTCEG score recompute
  3. 2026-06-29 19:52 UTCGHSA enrichment
  4. 2026-06-29 14:06 UTCEPSS rescore
  5. 2026-06-28 19:15 UTCEG score recompute
  6. 2026-06-28 19:15 UTCGHSA enrichment
  7. 2026-06-28 14:07 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-27 18:31 UTCEG score recompute
  10. 2026-06-27 18:31 UTCGHSA enrichment
  11. 2026-06-27 03:08 UTCEPSS rescore
  12. 2026-06-26 17:54 UTCEG score recompute
  13. 2026-06-26 17:53 UTCGHSA enrichment
  14. 2026-06-25 17:15 UTCEG score recompute
  15. 2026-06-25 17:15 UTCGHSA enrichment
  16. 2026-06-25 13:49 UTCEPSS rescore
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  18. 2026-06-24 16:38 UTCEG score recompute
  19. 2026-06-24 16:37 UTCGHSA enrichment
  20. 2026-06-24 14:05 UTCEPSS rescore
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  26. 2026-06-21 01:59 UTCEPSS rescore
  27. 2026-06-19 19:25 UTCEPSS rescore
  28. 2026-06-19 00:27 UTCEG score recompute
  29. 2026-06-19 00:26 UTCGHSA enrichment
  30. 2026-06-18 17:52 UTCEPSS rescore
  31. 2026-06-18 17:52 UTCEPSS rescore
  32. 2026-06-17 18:04 UTCEG score recompute
  33. 2026-06-17 18:03 UTCGHSA enrichment
  34. 2026-06-17 17:53 UTCEPSS rescore
  35. 2026-06-16 17:52 UTCEPSS rescore
  36. 2026-06-16 15:38 UTCEG score recompute
  37. 2026-06-16 15:38 UTCGHSA enrichment
  38. 2026-06-15 17:49 UTCEPSS rescore
  39. 2026-06-15 12:54 UTCEG score recompute
  40. 2026-06-15 12:54 UTCGHSA enrichment
  41. 2026-06-14 09:10 UTCEG score recompute
  42. 2026-06-14 09:10 UTCGHSA enrichment
  43. 2026-06-13 23:00 UTCEPSS rescore
  44. 2026-06-13 08:31 UTCEG score recompute
  45. 2026-06-13 08:31 UTCGHSA enrichment
  46. 2026-06-12 23:12 UTCEPSS rescore
  47. 2026-06-12 23:12 UTCEPSS rescore
  48. 2026-06-12 07:53 UTCEG score recompute
  49. 2026-06-12 07:53 UTCGHSA enrichment
  50. 2026-06-11 14:00 UTCEPSS rescore
  51. 2026-06-11 07:16 UTCEG score recompute
  52. 2026-06-11 07:16 UTCGHSA enrichment
  53. 2026-06-10 22:18 UTCEPSS rescore
  54. 2026-06-10 13:22 UTCEPSS rescore
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  56. 2026-06-10 06:39 UTCEG score recompute
  57. 2026-06-10 06:39 UTCGHSA enrichment
  58. 2026-06-09 06:03 UTCEG score recompute
  59. 2026-06-09 06:03 UTCGHSA enrichment
  60. 2026-06-08 14:17 UTCEPSS rescore
  61. 2026-06-08 14:17 UTCEPSS rescore
  62. 2026-06-08 05:25 UTCEG score recompute
  63. 2026-06-08 05:25 UTCGHSA enrichment
  64. 2026-06-07 15:25 UTCEPSS rescore
  65. 2026-06-07 15:25 UTCEPSS rescore
  66. 2026-06-07 04:48 UTCEG score recompute
  67. 2026-06-07 04:48 UTCGHSA enrichment
  68. 2026-06-06 13:47 UTCEPSS rescore
  69. 2026-06-06 13:47 UTCEPSS rescore
  70. 2026-06-06 04:11 UTCEG score recompute▲ 0.50
  71. 2026-06-06 04:11 UTCGHSA enrichment
  72. 2026-06-05 22:47 UTCEPSS rescore
  73. 2026-06-05 06:10 UTCEPSS rescore
  74. 2026-06-05 06:10 UTCEPSS rescore
  75. 2026-06-05 03:34 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-41185?
CVE-2026-41185 is a medium vulnerability published on May 28, 2026. When Calico is configured with the Azure IPAM plugin, the Calico CNI binary mutates the incoming CNI configuration to attach subnet information before delegating to the IPAM plugin. After mutating, the Azure IPAM helper logs the entire unmarshaled configuration map (stdinData) at INFO level to…
When was CVE-2026-41185 disclosed?
CVE-2026-41185 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41185 actively exploited?
CVE-2026-41185 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 24.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-41185?
CVE-2026-41185 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-41185?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41185, 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.

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