CVE-2026-68968

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the backfill_id path segment failed to parse. The authorization dependency parsed it with int() while the route handler parsed it as pydantic's NonNegativeInt, which accepts values int() rejects (1.0 coerces to 1); FastAPI resolves dependencies before endpoint validation, so the two acted on different Dags. An authenticated user holding edit permission on any single Dag could therefore read, pause and cancel backfills belonging to any other Dag, including moving another Dag's queued runs to failed. No non-default configuration is required and backfill ids are sequential, so finding a target is trivial. Users are advised to upgrade to apache-airflow 3.3.1 or later, which parses the backfill id with the same type the routes declare.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
34
EG Risk 34/100CISA 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
Severity75% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.7%
EPSS %ILE
53rd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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 (2)

Auto-updated Aug 13, 2026
Patch available. Sources: github_pr.
generic
https://lists.apache.org/thread/f9zmw6xs5b4syhwzbl6fsxm4kf2632ol
github_pr

Resolve backfill_id in the access dependency with the type the routes declare

Fix merged in apache/airflow PR #70889 on 2026-08-04 — awaiting tagged release

https://github.com/apache/airflow/pull/70889

Vendor Advisories for CVE-2026-68968(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-airflow1.10.0 ... 3.3.1rc2 (297 versions)
  • every version 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 14× in last 7d / 89× 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 186 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-68968?
CVE-2026-68968 is a high vulnerability published on August 12, 2026. Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the backfill_id path segment failed to parse. The authorization dependency parsed it with int() while the route handler parsed it as pydantic's NonNegativeInt, which accepts values int() rejects (1.0…
When was CVE-2026-68968 disclosed?
CVE-2026-68968 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-2026-68968 actively exploited?
CVE-2026-68968 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (53rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-68968?
CVE-2026-68968 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-68968?
A fix for CVE-2026-68968 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68968 are linked in the Vendor Advisories panel on this page.

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