CVE-2026-62847 Metalama - Privilege Escalation

Metalama.Framework and Metalama.Tool < 2025.1.18, 2026.0.25, 2026.1.19 contain a privilege escalation caused by loading and executing compile-time assemblies from predictable, world-writable temp directories on Linux/macOS, letting local unprivileged users escalate privileges by planting malicious DLLs, exploit requires shared machine or CI environment with multiple users.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.15% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation, Information Disclosure, Data Tampering, Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-377

Vendor fix

Update to versions 2025.1.18, 2026.0.25, 2026.1.19 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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