CVE-2026-22606Public exploit

Code execution via incomplete runpy import blocklist

Published Jan 10, 2026 · Updated Jan 10, 2026

Safety-check bypass in Trail of Bits Fickling before 0.1.7 allows attackers to execute code via a crafted pickle file. The UnsafeImports analysis omits runpy from its unsafe-import blocklist, so runpy.run_path() and runpy.run_module() receive only a SUSPICIOUS rating. Code executes after a user or automated workflow accepts the scan result and deserializes the attacker-supplied pickle, granting the pickle the loader process's access.

CVSS severity7.8
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Safety-check bypass in Trail of Bits Fickling before 0.1.7 allows attackers to execute code via a crafted pickle file. The UnsafeImports analysis omits runpy from its unsafe-import blocklist, so runpy.run_path() and runpy.run_module() receive only a SUSPICIOUS rating. Code executes after a user or automated workflow accepts the scan result and deserializes the attacker-supplied pickle, granting the pickle the loader process's access.

The record

CVE
CVE-2026-22606
Published
Jan 10, 2026
Updated
Jan 10, 2026
Vendor
Trail of Bits
Product
Fickling
Classifications
CWE-184, CWE-502, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.1.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Trail of Bits · Ficklingversion=< 0.1.7

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-184Incomplete List of Disallowed Inputs
CWE-502Deserialization of Untrusted Data
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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