Secuno
ENNL
Book demo

CVE-2026-22607

Trailofbits Fickling insecure deserialization

7.8 HIGHPublic exploitEPSS 0.52%
  1. Published10 Jan 2026

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Trailofbits Fickling< 0.1.7

Remediation

Fixed in
Trailofbits Fickling≥ 0.1.7

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-843168.8
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1,…
CVE-2026-1092378.1
Crawl4AI from 0.9.0 before 0.9.4 contains an untrusted-config gate bypass that allows…
CVE-2026-1093918.1
Square Squash through commit e73f280 contains an insecure deserialization vulnerability…
CVE-2026-126138.8
Deserialization of untrusted data vulnerability in Ministry of Justice General…
CVE-2026-529038.8
A deserialization of untrusted data vulnerability was found in ManageIQ. The…
CVE-2026-817979.8
Unauthenticated PHP Object Injection in Buzz Stone | Magazine & Viral Blog WordPress…

Frequently asked

Is CVE-2026-22607 being actively exploited?

CVE-2026-22607 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.52%.

How severe is CVE-2026-22607?

CVE-2026-22607 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 0.52% probability of exploitation.

Which products are affected by CVE-2026-22607?

Affected products include Trailofbits Fickling.

How do I fix CVE-2026-22607?

Upgrade affected software to a fixed version, for example Trailofbits Fickling 0.1.7 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-22607 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.