Vulnerability Details CVE-2026-22607
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 25.9%
CVSS Severity
CVSS v3 Score 7.8
References
- https://github.com/trailofbits/fickling/commit/dc8ae12966edee27a78fe05c5745171a2b138d43
- https://github.com/trailofbits/fickling/releases/tag/v0.1.7
- https://github.com/trailofbits/fickling/security/advisories/GHSA-p523-jq9w-64x9
- https://github.com/trailofbits/fickling/security/advisories/GHSA-p523-jq9w-64x9
Products affected by CVE-2026-22607
-
cpe:2.3:a:trailofbits:fickling:0.0.1
-
cpe:2.3:a:trailofbits:fickling:0.0.2
-
cpe:2.3:a:trailofbits:fickling:0.0.3
-
cpe:2.3:a:trailofbits:fickling:0.0.4
-
cpe:2.3:a:trailofbits:fickling:0.0.5
-
cpe:2.3:a:trailofbits:fickling:0.0.6
-
cpe:2.3:a:trailofbits:fickling:0.0.7
-
cpe:2.3:a:trailofbits:fickling:0.0.8
-
cpe:2.3:a:trailofbits:fickling:0.1.0
-
cpe:2.3:a:trailofbits:fickling:0.1.1
-
cpe:2.3:a:trailofbits:fickling:0.1.2
-
cpe:2.3:a:trailofbits:fickling:0.1.3
-
cpe:2.3:a:trailofbits:fickling:0.1.4
-
cpe:2.3:a:trailofbits:fickling:0.1.5
-
cpe:2.3:a:trailofbits:fickling:0.1.6