CVE-2026-41018

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 66% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

The Elasticsearch logging provider, when configured with a host URL that embeds credentials (for example https://user:[email protected]:9200), wrote the full host URL — including the embedded credentials — into task logs. Any user with task-log read permission could harvest the backend credentials. Users are advised to upgrade to apache-airflow-providers-elasticsearch 6.5.3 or later and, as a defense-in-depth measure, configure the backend credentials via a secret backend rather than embedding them in the [elasticsearch] host URL.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

May 11, 2026

Last Modified

May 13, 2026

Advisory Details (3)

Auto-updated May 11, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-41018: Apache Airflow Providers Elasticsearch: Elasticsearch task-log handlers leak credentials embedded in the host URL

http://www.openwall.com/lists/oss-security/2026/05/10/3
generic
https://lists.apache.org/thread/wz5l58drprmwlv6jxnq466x24jqbbhp7
generic

Strip userinfo from ES host URL before using it as task-log label by potiuk · Pull Request #65349 · apache/airflow · GitHub

https://github.com/apache/airflow/pull/65349

Vendor Advisories for CVE-2026-41018(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)
PyPI(1)
PackageVulnerable rangeFixed inDependents
apache-airflow-providers-elasticsearch1.0.0 ... 6.5.3rc1 (141 versions)6.5.3—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 41× 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 136 total refreshes for this CVE.

  1. 2026-08-27 14:25 UTCEPSS rescore
  2. 2026-08-26 14:46 UTCEPSS rescore
  3. 2026-08-25 13:49 UTCEPSS rescore
  4. 2026-08-23 18:42 UTCEG score recompute
  5. 2026-08-23 00:19 UTCEPSS rescore
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  9. 2026-08-18 13:48 UTCEPSS rescore
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  11. 2026-08-17 11:16 UTCEG score recompute
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  13. 2026-08-16 04:28 UTCEG score recompute
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  24. 2026-08-09 13:46 UTCEPSS rescore
  25. 2026-08-09 02:17 UTCEG score recompute
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  1. 2026-08-08 16:37 UTCEPSS rescore
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  3. 2026-08-07 01:39 UTCEG score recompute
  4. 2026-08-06 13:46 UTCEPSS rescore
  5. 2026-08-05 22:00 UTCEG score recompute
  6. 2026-08-05 19:17 UTCEPSS rescore
  7. 2026-08-04 15:10 UTCEPSS rescore
  8. 2026-08-04 10:38 UTCEPSS rescore
  9. 2026-08-04 02:59 UTCEG score recompute
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  11. 2026-08-03 02:34 UTCEG score recompute
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  14. 2026-08-01 04:16 UTCEPSS rescore
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  21. 2026-07-25 14:18 UTCEPSS rescore
  22. 2026-07-24 14:17 UTCEPSS rescore
  23. 2026-07-23 14:18 UTCEPSS rescore
  24. 2026-07-23 03:11 UTCEG score recompute
  25. 2026-07-22 14:08 UTCEPSS rescore
  26. 2026-07-21 15:24 UTCEPSS rescore
  27. 2026-07-20 17:08 UTCEPSS rescore
  28. 2026-07-19 02:29 UTCEPSS rescore
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  30. 2026-07-16 17:03 UTCEPSS rescore
  31. 2026-07-15 16:57 UTCEPSS rescore
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  33. 2026-07-15 09:49 UTCOSV refresh
  34. 2026-07-15 02:00 UTCEPSS rescore
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  39. 2026-07-11 08:27 UTCEPSS rescore
  40. 2026-07-09 19:10 UTCEPSS rescore
  41. 2026-07-08 15:15 UTCEPSS rescore
  42. 2026-07-07 13:46 UTCEPSS rescore
  43. 2026-07-06 16:27 UTCEPSS rescore
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  45. 2026-07-06 02:23 UTCEPSS rescore
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  48. 2026-07-04 06:31 UTCEPSS rescore
  49. 2026-07-01 15:06 UTCEPSS rescore
  50. 2026-06-30 23:22 UTCEPSS rescore
  51. 2026-06-29 14:06 UTCEPSS rescore
  52. 2026-06-28 14:07 UTCEPSS rescore
  53. 2026-06-28 04:56 UTCEPSS rescore
  54. 2026-06-27 03:08 UTCEPSS rescore
  55. 2026-06-25 13:49 UTCEPSS rescore
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  63. 2026-06-21 01:59 UTCEPSS rescore
  64. 2026-06-19 19:25 UTCEPSS rescore
  65. 2026-06-18 17:52 UTCEPSS rescore
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  67. 2026-06-17 17:53 UTCEPSS rescore
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  69. 2026-06-15 17:49 UTCEPSS rescore
  70. 2026-06-13 23:00 UTCEPSS rescore
  71. 2026-06-12 23:12 UTCEPSS rescore
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  73. 2026-06-11 14:00 UTCEPSS rescore
  74. 2026-06-10 22:18 UTCEPSS rescore
  75. 2026-06-10 13:22 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-41018?
CVE-2026-41018 is a medium vulnerability published on May 11, 2026. The Elasticsearch logging provider, when configured with a host URL that embeds credentials (for example https://user:[email protected]:9200), wrote the full host URL — including the embedded credentials — into task logs. Any user with task-log read permission could harvest the backend…
When was CVE-2026-41018 disclosed?
CVE-2026-41018 was first published in the National Vulnerability Database on May 11, 2026, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41018 actively exploited?
CVE-2026-41018 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 66.0% of all scored CVEs.
What is the CVSS score of CVE-2026-41018?
CVE-2026-41018 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-41018?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41018, 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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