critical10.0
CVE-2026-3490
picklescan before 1.0.4 fails to block pkgutil.resolve_name, allowing attackers to bypass the entire blocklist by resolving any dangerous function through indi…
Impact
picklescan before 1.0.4 fails to block pkgutil.resolve_name, allowing attackers to bypass the entire blocklist by resolving any dangerous function through indirect REDUCE calls. Remote attackers can invoke any blocked function such as os.system, builtins.exec, or subprocess.call to achieve remote code execution.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | picklescan | < 1.0.4 | 1.0.4 |
Affected products
| Product | Affected versions |
|---|---|
| Picklescan | before 1.0.4 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/mmaitre314/picklescan/security/advisories/GHSA-vvpj-8cmc-gx39
- https://www.vulncheck.com/advisories/picklescan-universal-blocklist-bypass-via-pkgutil-resolve-name
- https://github.com/advisories/GHSA-vvpj-8cmc-gx39
- https://nvd.nist.gov/vuln/detail/CVE-2026-3490