CVE-2026-67260

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM 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: 1.4%CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
7.3HIGHmedium confidence
EG Risk
48
EG Risk 48/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.4%
EPSS %ILE
71st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 12, 2026

Last Modified

September 16, 2026

Advisory Details (3)

Auto-updated Aug 12, 2026
Patch available. 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 rangeFix by version rangeDependents
apache-airflow3.3.0, 3.3.1rc1, 3.3.1rc2
  • 3.3.0 up to 3.3.1: fixed in 3.3.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 86× 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 178 total refreshes for this CVE.

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

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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 on August 12, 2026, with the most recent update on September 16, 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 1.4% probability of exploitation in the next 30 days (71st percentile of EPSS-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?
A fix for CVE-2026-67260 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-67260 are linked in the Vendor Advisories panel on this page.

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