DeepDiff is a project focused on Deep Difference and search of any Python data. Versions 5.0.0 through 8.6.0 are vulnerable to class pollution via the Delta class constructor, and when combined with a gadget available in DeltaDiff, it can lead to Denial of Service and Remote Code Execution (via insecure Pickle deserialization) exploitation. The gadget available in DeepDiff allows deepdiff.serialization.SAFE_TO_IMPORT to be modified to allow dangerous classes such as posix.system, and then perform insecure Pickle deserialization via the Delta class. This potentially allows any Python code to be executed, given that the input to Delta is user-controlled. Depending on the application where DeepDiff is used, this can also lead to other vulnerabilities. This is fixed in version 8.6.1.
CVE-2025-58367
This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 50% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 10.0
- EG Score
- 10.0(medium)
- EPSS
- 60.9%
- KEV
- Not listed
Published
September 5, 2025
Last Modified
April 15, 2026
Advisory Details (3)
Auto-updated Jul 17, 2026Class Pollution in Delta class leading to DoS, Remote Code Execution, and more · Advisory · qlustered/deepdiff · GitHub
https://github.com/seperman/deepdiff/security/advisories/GHSA-mw26-5g2v-hqw38.6.1
Patch available: seperman/deepdiff 8.6.1
https://github.com/seperman/deepdiff/releases/tag/8.6.1commit c69c06c13f75 (seperman/deepdiff)
Patch available: seperman/deepdiff 8.6.1 (contains commit c69c06c13f75)
https://github.com/seperman/deepdiff/commit/c69c06c13f75e849c770ade3f556cd16209fd183Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| deepdiff | 5.0.0 ... 8.6.0 (38 versions) | 8.6.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 117 total refreshes for this CVE.
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Frequently asked(5)
What is CVE-2025-58367?
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How do I remediate CVE-2025-58367?
Dependency Blast Radius
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