Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-104040
Red Hat Red Hat Enterprise Linux 10 — Sssd: sssd: information disclosure via odata injection in entra id lookups
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U L N H 6.1 .0010 0.8 —
AFFECTED
Product Versions Fixed
Red Hat Enterprise Linux 10 unspecified —
Red Hat Enterprise Linux 6 unspecified —
Red Hat Enterprise Linux 7 unspecified —
Red Hat Enterprise Linux 8 unspecified —
Red Hat Enterprise Linux 9 unspecified —
Red Hat OpenShift Container Platform 4 unspecified —
Red Hat OpenShift Container Platform 4 unspecified —
TIMELINE
Oct 1 Reserved by redhat
Oct 6 Published (CNA: redhat)
Oct 16 EXPLOIT PUBLISHED — CVE-2026-104040 (Red Hat Enterprise Linux 10). Public exploit reference added.
Oct 16 RESCORED — CVE-2026-104040 (Red Hat Enterprise Linux 10). CVSS 4.4 → 6.1 (NVD).
Description
A flaw was found in SSSD. When configured with the Entra ID identity provider, input lookup names containing single quotes are not properly escaped before being included in Microsoft Graph Open Data Protocol (OData) queries. A low-privileged local user can exploit this flaw by submitting a crafted search request, altering query filters to broaden user or group searches. This can lead to information disclosure by retrieving unintended directory objects, as well as a Denial of Service (DoS) through excessive processing and cache population.
Lifecycle
Complete event history — 4 events, chronological
| Date | Event | Detail |
|---|
| October 1, 2026 | Reserved | Reserved by redhat |
| October 6, 2026 | Published | Published (CNA: redhat) |
| October 16, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-104040 (Red Hat Enterprise Linux 10). Public exploit reference added. |
| October 16, 2026 | RESCORED | RESCORED — CVE-2026-104040 (Red Hat Enterprise Linux 10). CVSS 4.4 → 6.1 (NVD). |
Affected
Affected products and packages — 7 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-104040 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
