CVE-2026-22607
Description
Fickling is a Python pickling decompiler and static analyzer. Fickling versions up to and including 0.1.6 do not treat Python's cProfile module as unsafe. Because of this, a malicious pickle that uses cProfile.run() 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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
ficklingPyPI | < 0.1.7 | 0.1.7 |
Affected products
3master, v0.0.1, v0.0.2, …+ 1 more
- (no CPE)range: master, v0.0.1, v0.0.2, …
- cpe:2.3:a:trailofbits:fickling:*:*:*:*:*:*:*:*range: <0.1.7
Patches
Vulnerability mechanics
References
11- github.com/trailofbits/fickling/commit/dc8ae12966edee27a78fe05c5745171a2b138d43nvdPatchWEB
- github.com/trailofbits/fickling/security/advisories/GHSA-p523-jq9w-64x9nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-p523-jq9w-64x9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-22607ghsaADVISORY
- github.com/trailofbits/fickling/blob/977b0769c13537cd96549c12bb537f05464cf09c/test/test_bypasses.pyghsaWEB
- github.com/trailofbits/fickling/pull/108ghsaWEB
- github.com/trailofbits/fickling/pull/187ghsaWEB
- github.com/trailofbits/fickling/pull/195ghsaWEB
- github.com/trailofbits/fickling/releases/tag/v0.1.7nvdRelease NotesWEB
- github.com/trailofbits/fickling/security/advisories/GHSA-565g-hwwr-4pp3ghsaWEB
- github.com/trailofbits/fickling/security/advisories/GHSA-r7v6-mfhq-g3m2ghsaWEB
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