CVE-2026-86792

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

Apache Airflow Apache Kafka provider versions 1.15.0 before 2.0.0 resolve dotted-path strings found in a Kafka connection's extra field into Python callables via import_string, with no allowlist, and hand them to the confluent-kafka client which invokes them. Deployments that have enabled the Kafka event producer — dag_run_events_enabled or task_instance_events_enabled, both disabled by default — build that client inside the scheduler process, so a user whose only privilege is editing Airflow connections gains arbitrary code execution in the control plane; the Airflow security model limits connection-configuration users to code execution on workers, not the scheduler. Deployments using Google Managed Kafka are not affected, because that code path overwrites any user-supplied oauth_cb; plain brokers and Amazon MSK are exposed. Users are recommended to upgrade to apache-airflow-providers-apache-kafka 2.0.0 or later, which adds an allowlist configuration option for connection-string callbacks.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 18, 2026

Advisory Details (3)

Auto-updated Sep 17, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic
https://lists.apache.org/thread/jl4gpok02313yh3rvtvj8qbo11c6zpr2
generic
https://lists.apache.org/thread/[email protected]
github_pr

Add an allowlist config option for Kafka connection string callbacks

Fix merged in apache/airflow PR #72208 on 2026-09-08 — awaiting tagged release

https://github.com/apache/airflow/pull/72208

Vendor Advisories for CVE-2026-86792(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 21× in last 7d / 21× 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. 2026-09-19 01:48 UTCEG score recompute
  2. 2026-09-19 01:48 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 14:42 UTCGHSA enrichment
  5. 2026-09-18 07:35 UTCEG score recompute
  6. 2026-09-18 07:35 UTCGHSA enrichment
  7. 2026-09-17 20:28 UTCGHSA enrichment
  8. 2026-09-17 19:44 UTCEG score recompute▲ 8.80
  9. 2026-09-17 19:44 UTCGHSA enrichment
  10. 2026-09-17 19:44 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  11. 2026-09-17 19:32 UTCEPSS rescore
  12. 2026-09-16 19:11 UTCGHSA enrichment
  13. 2026-09-16 15:25 UTCGHSA enrichment
  14. 2026-09-16 15:19 UTCNVD update
  15. 2026-09-16 15:01 UTCEG score recompute
  16. 2026-09-16 15:01 UTCGHSA enrichment
  17. 2026-09-16 15:00 UTCMITRE cvelistV5
  18. 2026-09-16 14:09 UTCEPSS rescore
  19. 2026-09-16 10:25 UTCNVD update
  20. 2026-09-16 09:32 UTCEG score recompute
  21. 2026-09-16 09:31 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-86792?
CVE-2026-86792 is a high vulnerability published on September 16, 2026. Apache Airflow Apache Kafka provider versions 1.15.0 before 2.0.0 resolve dotted-path strings found in a Kafka connection's extra field into Python callables via importstring, with no allowlist, and hand them to the confluent-kafka client which invokes them. Deployments that have enabled the Kafka…
When was CVE-2026-86792 disclosed?
CVE-2026-86792 was first published in the National Vulnerability Database on September 16, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86792 actively exploited?
CVE-2026-86792 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 46.5% of all scored CVEs.
What is the CVSS score of CVE-2026-86792?
CVE-2026-86792 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-86792?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86792, 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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