Vulnerability Details CVE-2026-22606
Fickling is a Python pickling decompiler and static analyzer. Fickling versions up to and including 0.1.6 do not treat Python’s runpy module as unsafe. Because of this, a malicious pickle that uses runpy.run_path() or runpy.run_module() is classified as SUSPICIOUS instead of OVERTLY_MALICIOUS. If a user relies on Fickling’s output to decide whether a pickle is safe to deserialize, this misclassification can lead them to execute attacker-controlled code on their system. This affects any workflow or product that uses Fickling as a security gate for pickle deserialization. This issue has been patched in version 0.1.7.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 25.9%
CVSS Severity
CVSS v3 Score 7.8
References
- https://github.com/trailofbits/fickling/commit/9a2b3f89bd0598b528d62c10a64c1986fcb09f66
- https://github.com/trailofbits/fickling/releases/tag/v0.1.7
- https://github.com/trailofbits/fickling/security/advisories/GHSA-wfq2-52f7-7qvj
- https://github.com/trailofbits/fickling/security/advisories/GHSA-wfq2-52f7-7qvj
Products affected by CVE-2026-22606
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cpe:2.3:a:trailofbits:fickling:0.0.1
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cpe:2.3:a:trailofbits:fickling:0.0.2
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cpe:2.3:a:trailofbits:fickling:0.0.3
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cpe:2.3:a:trailofbits:fickling:0.0.4
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cpe:2.3:a:trailofbits:fickling:0.0.5
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cpe:2.3:a:trailofbits:fickling:0.0.6
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cpe:2.3:a:trailofbits:fickling:0.0.7
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cpe:2.3:a:trailofbits:fickling:0.0.8
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cpe:2.3:a:trailofbits:fickling:0.1.0
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cpe:2.3:a:trailofbits:fickling:0.1.1
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cpe:2.3:a:trailofbits:fickling:0.1.2
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cpe:2.3:a:trailofbits:fickling:0.1.3
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cpe:2.3:a:trailofbits:fickling:0.1.4
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cpe:2.3:a:trailofbits:fickling:0.1.5
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cpe:2.3:a:trailofbits:fickling:0.1.6