CVE-2026-33155
- Source
- https://cve.org/CVERecord?id=CVE-2026-33155
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33155.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-33155
- Aliases
- Downstream
- Related
- Published
- 2026-03-20T20:25:53.405Z
- Modified
- 2026-04-10T05:42:38.323477Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- DeepDiff has Memory Exhaustion DoS through SAFE_TO_IMPORT
- Details
-
DeepDiff is a project focused on Deep Difference and search of any Python data. From version 5.0.0 to before version 8.6.2, the pickle unpickler RestrictedUnpickler validates which classes can be loaded but does not limit their constructor arguments. A few of the types in SAFETOIMPORT have constructors that allocate memory proportional to their input (builtins.bytes, builtins.list, builtins.range). A 40-byte pickle payload can force 10+ GB of memory, which crashes applications that load delta objects or call pickleload with untrusted data. This issue has been patched in version 8.6.2.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33155.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-400" ] }- References