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CVE

CVE-2026-33646

mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)
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CVE

CVE-2026-33646

mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)

mise manages dev tools like node, python, cmake, and terraform. Prior to 2026.3.10, mise processes .tool-versions files through the Tera template engine during parsing, with the exec() function registered, enabling arbitrary command execution. Unlike .mise.toml files, .tool-versions files are not subject to trust verification in non-paranoid mode. This means an attacker can place a malicious .tool-versions file in a git repository, and when a victim with mise activated cds into the directory, arbitrary commands execute without any trust prompt. This vulnerability is fixed in 2026.3.10.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.6
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33646.json, https://github.com/jdx/mise/security/advisories/GHSA-fjj5-v948-whjj, https://nvd.nist.gov/vuln/detail/CVE-2026-33646

Severity

9.6

CVSS Score
0
10

Basic Information

Base CVSS
9.6
EPSS Probability
0.00685%
EPSS Percentile
0.51133%
Introduced Version
0
Fix Available
d59df0fc7d5c2177eccde325938369c53352fa3d

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