Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Fickling versions up to and including 0.1.11 are vulnerable. The UnsafeImportsML analysis pass records every import it inspects in a shared set, which causes the MLAllowlist pass to skip its allowlist check entirely. An attacker who can supply a pickle file to a system that uses fickling's check_safety() or fickling.load() can get a malicious payload past the safety check using any standard library module not on the denylist, which may then execute when deserialized. Upgrade to fickling 0.1.12 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.8 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CNA (BombadilSystems) |
- CISA KEV Not listed.
- EPSS 0.0056, the 47th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:04 UTC First seen by agentprime
- 31 Oct 2026, 15:04 UTC Confirmed by OSV