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CVE-2026-2635 is a critical authentication bypass vulnerability in MLflow caused by hard-coded default credentials present in the basic_auth.ini authentication configuration. Because affected installations ship or rely on a default basic authentication setup containing known credentials, a remote attacker can authenticate without prior authorization and defeat the intended access control mechanism. The issue is reachable over the network and does not require user interaction or existing privileges. Successful exploitation can give an attacker administrative access to the MLflow instance, after which they may perform actions resulting in arbitrary code execution in the context of the administrator.
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No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An authentication bypass vulnerability in MLflow involving hard-coded default credentials in basic_auth, mentioned as part of vendor security history.
An authentication bypass in MLflow caused by hard-coded default credentials in basic_auth.ini, enabling remote unauthenticated attackers to bypass auth and potentially execute arbitrary code with administrator context.
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.