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CVE-2026-41615 is a critical information disclosure vulnerability in Microsoft Authenticator. The flaw allows an unauthorized attacker to induce a victim to approve a malicious authentication request, after which the application can obtain and expose the victim’s work account sign-in access token over the network. Available reporting indicates the attack flow relies on a spoofed or malicious approval prompt that appears legitimate to the user, and that the user is not clearly informed about the specific access being granted. Successful exploitation can silently exfiltrate the token and extend the impact beyond the application itself to enterprise applications and data accessible with that token. The vulnerability is classified as CWE-200 and has been associated with CVSS v3.1 vector AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
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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.
19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A mobile authentication vulnerability that leaks sign-in access tokens on Android and iOS, enabling credential theft through fraudulent approval requests.
A vulnerability in Microsoft Authenticator that allows unauthorized disclosure of sensitive information over a network.
A critical information exposure vulnerability in Microsoft Authenticator on Android that can be manipulated to obtain and exfiltrate a user's work account access token, enabling unauthorized access to enterprise applications and data.
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.