CVE-2026-68968

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH 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%CVSS: 7.5Exploit: None knownExposed: 0

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

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
7.5(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 18, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
Upstream fix merged — awaiting tagged release. 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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 43× 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 19:41 UTCGHSA enrichment
  3. 2026-08-20 07:08 UTCGHSA enrichment
  4. 2026-08-19 18:36 UTCEG score recompute
  5. 2026-08-19 18:36 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 05:23 UTCGHSA enrichment
  8. 2026-08-18 16:50 UTCEG score recompute
  9. 2026-08-18 16:50 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 07:47 UTCGHSA enrichment
  13. 2026-08-17 19:14 UTCEG score recompute
  14. 2026-08-17 19:14 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 06:10 UTCGHSA enrichment
  17. 2026-08-16 17:38 UTCEG score recompute
  18. 2026-08-16 17:38 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 04:58 UTCEG score recompute
  22. 2026-08-16 04:58 UTCGHSA enrichment
  23. 2026-08-16 02:15 UTCEPSS rescore
  24. 2026-08-15 16:26 UTCGHSA enrichment
  25. 2026-08-15 03:53 UTCEG score recompute
Show 18 more
  1. 2026-08-15 03:53 UTCGHSA enrichment
  2. 2026-08-15 01:30 UTCEPSS rescore
  3. 2026-08-14 15:20 UTCGHSA enrichment
  4. 2026-08-14 02:47 UTCEG score recompute
  5. 2026-08-14 02:47 UTCGHSA enrichment
  6. 2026-08-13 22:00 UTCEPSS rescore
  7. 2026-08-13 14:15 UTCGHSA enrichment
  8. 2026-08-13 13:36 UTCGHSA enrichment
  9. 2026-08-13 12:27 UTCEG score recompute▲ 7.50
  10. 2026-08-13 12:27 UTCGHSA enrichment
  11. 2026-08-13 12:26 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  12. 2026-08-12 21:01 UTCGHSA enrichment
  13. 2026-08-12 18:38 UTCGHSA enrichment
  14. 2026-08-12 18:37 UTCNVD update
  15. 2026-08-12 16:40 UTCMITRE cvelistV5
  16. 2026-08-12 16:33 UTCNVD update
  17. 2026-08-12 15:36 UTCEG score recompute
  18. 2026-08-12 15:35 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database on August 12, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68968 actively exploited?
CVE-2026-68968 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 65.1% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68968, 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.

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