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%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(medium)
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
54%
KEV
Not listed

Published

August 12, 2026

Last Modified

September 16, 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 22× in last 7d / 101× 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 137 total refreshes for this CVE.

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

Related CVEs(same CWE)

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 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% probability of exploitation in the next 30 days, which ranks it in the top 45.7% 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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