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CVE-2026-44753 is an information disclosure vulnerability in SAP HANA Extended Application Services (XS) classic model User Self Service functionality. The flaw allows an unauthenticated attacker to send specially crafted requests and observe distinguishable application responses that reveal whether submitted account identifiers correspond to valid user accounts or email addresses. The issue stems from inconsistent response behavior that exposes account validity information during user self-service interactions, enabling systematic enumeration of existing identities in the application.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An information disclosure vulnerability affecting SAP HANA Extended Application Services, classic model.
An information disclosure vulnerability affecting SAP HANA Extended Application Services, classic model.
An information disclosure vulnerability in SAP HANA Extended Application Services classic model User Self Service that allows enumeration of valid user accounts and email addresses through distinguishable responses.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.