CVE-2026-67260

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.3Exploit: None knownExposed: 0

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

Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new awaiting_input task state swept by the scheduler. That sweep deserializes the task instance's next_kwargs without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an arbitrary module import and object instantiation inside the scheduler process, or terminate the scheduler job. No non-default configuration is required: the sweep runs unconditionally every 15 seconds, and the default allowed_deserialization_classes setting does not cover this code path. Versions before 3.3.0 are not affected, because human-in-the-loop tasks deferred onto the triggerer instead. This is a different code path from CVE-2026-58076, which covers the same unguarded exception-node deserialization reached elsewhere — deployments that applied that fix must upgrade for this issue as well. Users are advised to upgrade to apache-airflow 3.3.1 or later.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity73% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
53%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 17, 2026

Advisory Details (3)

Auto-updated Aug 12, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic
https://lists.apache.org/thread/vygr0fh82cjzjp5k4vtfmboxryvm3lyn
generic
https://www.cve.org/CVERecord?id=CVE-2026-58076
github_pr

Fail task instances whose stored next_kwargs cannot be processed

Fix merged in apache/airflow PR #70685 on 2026-08-05 — awaiting tagged release

https://github.com/apache/airflow/pull/70685

Vendor Advisories for CVE-2026-67260(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-airflow3.3.0, 3.3.1rc1, 3.3.1rc23.3.1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 38× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 22:46 UTCGHSA enrichment
  3. 2026-08-20 10:10 UTCGHSA enrichment
  4. 2026-08-19 21:36 UTCEG score recompute
  5. 2026-08-19 21:36 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 08:56 UTCGHSA enrichment
  8. 2026-08-18 20:20 UTCEG score recompute
  9. 2026-08-18 20:20 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 07:43 UTCGHSA enrichment
  12. 2026-08-17 19:08 UTCGHSA enrichment
  13. 2026-08-17 14:14 UTCEG score recompute
  14. 2026-08-17 14:14 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 01:40 UTCEG score recompute
  17. 2026-08-17 01:40 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 13:05 UTCEG score recompute
  20. 2026-08-16 13:05 UTCGHSA enrichment
  21. 2026-08-16 00:30 UTCGHSA enrichment
  22. 2026-08-15 11:55 UTCEG score recompute
  23. 2026-08-15 11:55 UTCGHSA enrichment
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-14 23:20 UTCGHSA enrichment
Show 13 more
  1. 2026-08-14 10:45 UTCGHSA enrichment
  2. 2026-08-13 22:10 UTCEG score recompute
  3. 2026-08-13 22:10 UTCGHSA enrichment
  4. 2026-08-13 22:00 UTCEPSS rescore
  5. 2026-08-13 09:36 UTCGHSA enrichment
  6. 2026-08-12 21:01 UTCEG score recompute
  7. 2026-08-12 21:01 UTCGHSA enrichment
  8. 2026-08-12 16:40 UTCMITRE cvelistV5CVSS v3 → 7.3 · severity → HIGH
  9. 2026-08-12 16:33 UTCNVD update
  10. 2026-08-12 16:21 UTCEG score recompute▲ 7.30
  11. 2026-08-12 16:20 UTCMITRE cvelistV5CVSS v3 → 7.3 · severity → HIGH
  12. 2026-08-12 15:36 UTCEG score recompute
  13. 2026-08-12 15:35 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-67260?
CVE-2026-67260 is a high vulnerability published on August 12, 2026. Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new awaitinginput task state swept by the scheduler. That sweep deserializes the task instance's nextkwargs without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an…
When was CVE-2026-67260 disclosed?
CVE-2026-67260 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67260 actively exploited?
CVE-2026-67260 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 46.9% of all scored CVEs.
What is the CVSS score of CVE-2026-67260?
CVE-2026-67260 has a CVSS v3.1 base score of 7.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-67260?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67260, 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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