CVE-2026-48891

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-07-07. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 4.3Exploit: NoneExposed: 0

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

A bug in Apache Airflow's /ui/dependencies scheduling graph endpoint applied the caller's readable-Dag filter to the top-level serialized Dag key but still emitted referenced Dag IDs through the dep.source and dep.target fields of trigger / sensor dependency entries. An authenticated UI user with read permission on some Dags could enumerate the identifiers of other Dags they were not authorized to read by inspecting the dependency graph for trigger / sensor references. Affects deployments that rely on per-Dag read scoping to keep Dag identifiers private across teams. This is a residual gap in the fix for CVE-2026-28563, which filtered the top-level Dag key but did not propagate the filter into the trigger / sensor dep-source / dep-target fields. Users who already upgraded for CVE-2026-28563 should additionally upgrade to apache-airflow 3.3.0 or later to cover the residual trigger / sensor dependency leak.

CVSS v3
4.3
EG Score
4.3(high)
EPSS
46.4%
KEV
Not listed

Published

July 7, 2026

Last Modified

July 9, 2026

Advisory Details (3)

Auto-updated Jul 9, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic
https://www.cve.org/CVERecord?id=CVE-2026-28563
generic
https://lists.apache.org/thread/wzc8nflg94rq6w8f5tvtlo0o3g4wjrfl
github_pr

Filter scheduling-dependencies graph edges by readable-DAG access

Fix merged in apache/airflow PR #67627 on 2026-06-02 — awaiting tagged release

https://github.com/apache/airflow/pull/67627

Vendor Advisories for CVE-2026-48891(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-airflow1.10.0 ... 3.3.0rc2 (294 versions)3.3.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 25× 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. 2026-07-15 22:10 UTCEG score recompute
  2. 2026-07-15 22:10 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-14 19:43 UTCEG score recompute
  6. 2026-07-14 19:43 UTCGHSA enrichment
  7. 2026-07-13 22:30 UTCEPSS rescore
  8. 2026-07-13 17:20 UTCEG score recompute
  9. 2026-07-13 17:20 UTCGHSA enrichment
  10. 2026-07-13 06:13 UTCEPSS rescore
  11. 2026-07-12 14:57 UTCEG score recompute
  12. 2026-07-12 14:57 UTCGHSA enrichment
  13. 2026-07-12 05:46 UTCEPSS rescore
  14. 2026-07-11 12:33 UTCEG score recompute
  15. 2026-07-11 12:33 UTCGHSA enrichment
  16. 2026-07-11 08:27 UTCEPSS rescore
  17. 2026-07-10 10:10 UTCEG score recompute▲ 4.30
  18. 2026-07-10 10:10 UTCGHSA enrichment
  19. 2026-07-09 19:10 UTCEPSS rescore
  20. 2026-07-08 15:16 UTCEPSS rescore
  21. 2026-07-07 13:53 UTCMITRE cvelistV5CVSS v3 → 4.3 · severity → MEDIUM
  22. 2026-07-07 13:46 UTCEPSS rescore
  23. 2026-07-07 11:56 UTCNVD update
  24. 2026-07-07 10:07 UTCEG score recompute
  25. 2026-07-07 10:06 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-48891?
CVE-2026-48891 is a medium vulnerability published on July 7, 2026. A bug in Apache Airflow's /ui/dependencies scheduling graph endpoint applied the caller's readable-Dag filter to the top-level serialized Dag key but still emitted referenced Dag IDs through the dep.source and dep.target fields of trigger / sensor dependency entries. An authenticated UI user with…
When was CVE-2026-48891 disclosed?
CVE-2026-48891 was first published in the National Vulnerability Database on July 7, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48891 actively exploited?
CVE-2026-48891 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 46.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-48891?
CVE-2026-48891 has a CVSS v3.1 base score of 4.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-48891?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48891, 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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