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CVE-2026-22609
Fickling has Static Analysis Bypass via Incomplete Dangerous Module Blocklist
High8.9EPSS 0.63%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Fickling is a Python pickling decompiler and static analyzer. Prior to version 0.1.7, the unsafe_imports() method in Fickling's static analyzer fails to flag several high-risk Python modules that can be used for arbitrary code execution. Malicious pickles importing these modules will not be detected as unsafe, allowing attackers to bypass Fickling's primary static safety checks. This issue has been patched in version 0.1.7.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 4.0 | High8.9 | 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 |
| NVDNVD · Analyzed | 4.0 | High8.9 | 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.63% · top 50% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: yes · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.9.
Weakness
Affected products
- affected < 0.1.7
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIficklingGHSA-q5qq-mvfm-j35x (opens in a new tab)
References (6)
- https://github.com/trailofbits/fickling/security/advisories/GHSA-q5qq-mvfm-j35x (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/trailofbits/fickling/commit/29d5545e74b07766892c1f0461b801afccee4f91 (opens in a new tab)x_refsource_MISC
- https://github.com/trailofbits/fickling/commit/9a2b3f89bd0598b528d62c10a64c1986fcb09f66 (opens in a new tab)x_refsource_MISC
- https://github.com/trailofbits/fickling/commit/b793563e60a5e039c5837b09d7f4f6b92e6040d1 (opens in a new tab)x_refsource_MISC
- https://github.com/trailofbits/fickling/commit/eb299b453342f1931c787bcb3bc33f3a03a173f9 (opens in a new tab)x_refsource_MISC
- https://github.com/trailofbits/fickling/releases/tag/v0.1.7 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-q5qq-mvfm-j35x (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-22609)Record last updated .