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CVE-2026-57456 is a code-injection vulnerability in Vim versions before 9.2.0699. Python omni-completion reconstructs function and class definitions from the current buffer and executes them with Python exec() to populate its completion dictionary. Scope docstrings are inserted verbatim into triple-quoted literals without escaping. A malicious docstring can terminate the reconstructed literal and inject Python code that executes when omni-completion processes the buffer. Both the Python 3 implementation and the legacy Python completion implementation are affected.
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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.
34 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability covered by Huawei EulerOS advisory EulerOS_SA-2026-4295 for Vim packages. The excerpt does not describe its technical cause or individual impact.
A vulnerability covered by the EulerOS Vim security check. Specific flaw details and impacts are not provided.
A vulnerability covered by the Huawei EulerOS Vim security update. Individual technical details are not provided.
A vulnerability covered by the EulerOS Vim security update; its underlying flaw and individual exploit availability are not described.
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.