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CVE-2026-52860 is an arbitrary code execution vulnerability in Vim versions earlier than 9.2.0597 when Python omni-completion is available. The omni-completion implementation reconstructs Python function and class definitions from the active buffer and executes the reconstructed source with Python exec(). Function default expressions, parameter annotations, and class base expressions are evaluated when Python defines those objects, allowing expressions embedded in a hostile Python buffer to execute during completion. The g:pythoncomplete_allow_import setting does not prevent this path because the executed expressions are not harvested import or from statements.
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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 public exploits tracked yet. Mallory keeps watching.
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.
18 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability addressed by the AlmaLinux 9.2 TuxCare security update. The supplied CVSS v3 vector indicates network exposure, low attack complexity, no privileges required, user interaction required, and high confidentiality, integrity, and availability impact.
A high-impact vulnerability addressed by a TuxCare CentOS 7 local security advisory. Successful exploitation requires user interaction according to the supplied CVSS vectors and may compromise confidentiality, integrity, and availability.
A vulnerability addressed by Huawei EulerOS SA-2026-3858 for EulerOS UVP 2.10.1 Vim packages.
A vulnerability addressed by the EulerOS SA-2026-3892 update for the listed EulerOS Vim packages; no technical flaw details are provided.
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.