Advisory severityUnratedApache Software Foundation Updated

Advisory [CVE-2026-40948 +1] Apache Airflow Amazon provider: the AWS auth manager's SAML login flow does not bind the authentication response to the browser that began it

This security Apache Software Foundation advisory covers CVE-2026-86467 and CVE-2026-40948; related products: Apache Airflow Amazon.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 2 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.

CVE-2026-86467 Source published Oct 20, 2026Source updated Oct 20, 2026

VulniPulse record published Oct 20, 2026Record updated Oct 21, 2026

CVE-2026-40948 CVE-2026-86467

Monitor future Apache Software Foundation CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts See app features

Summary

Apache Airflow Amazon provider: the AWS auth manager's SAML login flow does not bind the authentication response to the browser that began it.

The login handler discards the AuthnRequest ID and the callback validates the assertion without requiring a matching InResponseTo, so an unauthenticated attacker who can cause a victim to load a page can complete a SAML login in the victim's browser using the attacker's own assertion, silently logging the victim into the attacker's Airflow account.

Subsequent work the victim performs lands in a session the attacker controls.

The victim needs only to visit an attacker-controlled page; no Airflow account or credential is required of the attacker. This is the same login-CSRF class fixed in the Keycloak auth manager as CVE-2026-40948.

Users of apache-airflow-providers-amazon are recommended to upgrade to version 9.38.0, which fixes the issue.

Affected versions

Apache Airflow Amazon provider before 9.38.0

Official advisory · medium-confidence parse· fetched 2 days ago·verify at source

Fixed versions

9.38.0

Official advisory · medium-confidence parse· fetched 2 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users of apache-airflow-providers-amazon are recommended to upgrade to version 9.38.0, which fixes the issue.

Official advisory · medium-confidence parse· fetched 2 days ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-40948 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

Official resources

ASF Security — reporting & CVE process
Official documentation
The Apache Software Foundation's official security page: how ASF CVEs are published and where each project's advisories live.
Apache project downloads (fixed releases)
Official documentation
Official ASF download tree — fetch the fixed release named in this advisory from the project's directory.

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.