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CVE-2026-87701 is a Critical elevation-of-privilege vulnerability in Azure Cosmos DB caused by improper neutralization of special elements in output consumed by a downstream component. The CWE-74 injection flaw can be exploited remotely by an authorized attacker to elevate privileges within the service context. Microsoft classifies Azure Cosmos DB as an exclusively hosted service for this issue.
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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.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An injection vulnerability in Azure Cosmos DB that enables an authorized attacker to escalate privileges over the network.
An injection vulnerability in Azure Cosmos DB that allows an authorized network attacker to elevate privileges.
An Azure Cosmos DB injection vulnerability (CWE-74) that permits an authorized network attacker to elevate privileges. The listed CVSS v3.1 vector is AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N, indicating low attack complexity, required low privileges, no user interaction, scope change, and high confidentiality and integrity impact.
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.