Arbitrary Code Execution in Snowflake CLI Snowpark Annotation Processor Callback Template
CVE-2026-13749 is an arbitrary code execution vulnerability in Snowflake CLI caused by improper neutralization in the Snowpark annotation processor callback template. In affected versions prior to 3.19, crafted project content can be interpolated into generated Python code during application bundling or deployment workflows. If a user runs the vulnerable workflow against attacker-controlled project content, Snowflake CLI may execute attacker-controlled Python code locally in the context of the user running the CLI.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Recent activity
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
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.