CVE-2026-16760 Trail of Bits fickling - Insecure Deserialization

Trail of Bits fickling <= 0.1.12 contains a remote code execution caused by trusting callable safety based on module origin in _process_import(), letting attackers execute arbitrary code via pickle payloads, exploit requires deserialization of crafted pickle data.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.46% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Insecure Deserialization
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-502

Vendor fix

Update to a version after 0.1.12 where UNSAFE_IMPORTS denylist is updated and module-origin trust root cause is fixed.

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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