CVSS 4.0
8.9 highCVSS: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:PCVE-2026-22609
High (8.9) in trailofbits fickling. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in fickling 0.1.7.
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.
Severity
CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-184, CWE-502
- Published
- Modified
- Record from
- the NVD, synced
Affected
- trailofbits:fickling
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-q5qq-mvfm-j35x | PyPI | fickling | <0.1.7 | 0.1.7 |
| PYSEC-2026-1372 | PyPI | fickling | <0.1.7 | 0.1.7 |
References
- https://github.com/trailofbits/fickling/commit/29d5545e74b07766892c1f0461b801afccee4f91
- https://github.com/trailofbits/fickling/commit/9a2b3f89bd0598b528d62c10a64c1986fcb09f66
- https://github.com/trailofbits/fickling/commit/b793563e60a5e039c5837b09d7f4f6b92e6040d1
- https://github.com/trailofbits/fickling/commit/eb299b453342f1931c787bcb3bc33f3a03a173f9
- https://github.com/trailofbits/fickling/releases/tag/v0.1.7