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CVE-2026-52100 is a cross-site request forgery vulnerability affecting andreimarcu linux-server from version 1.0 through 2.3.8. The flaw is associated with the uploadPutHandler function and allows a remote attacker to induce a victim's browser to send unintended authenticated requests to the application. In the reported scenario, successful exploitation can lead to arbitrary code execution, indicating that the vulnerable request path can be abused to submit attacker-controlled upload or execution-related input through the affected handler.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.