Vulnerability · Published Sep 5, 2025 · Assigned by GitHub_M
CVE-2025-58367DeepDiff is vulnerable to DoS and Remote Code Execution via Delta class pollution
Critical 10.0
In plain English
A critical-severity security flaw in deepdiff from seperman. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | deepdiff | no fix listed | DEBIAN-CVE-2025-58367 |
| Debian:13 | deepdiff | 8.1.1-4+deb13u1 | DEBIAN-CVE-2025-58367 |
| Debian:14 | deepdiff | 8.6.1-1 | DEBIAN-CVE-2025-58367 |
| PyPI | deepdiff | 8.6.1 | GHSA-mw26-5g2v-hqw3 |
| PyPI | deepdiff | 8.6.1 | PYSEC-2026-327 |
| Ubuntu:22.04:LTS | deepdiff | no fix listed | UBUNTU-CVE-2025-58367 |
| Ubuntu:24.04:LTS | deepdiff | no fix listed | UBUNTU-CVE-2025-58367 |
| Ubuntu:25.10 | deepdiff | no fix listed | UBUNTU-CVE-2025-58367 |
Affected products (as reported)
Weakness: CWE-915 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
References
- https://github.com/seperman/deepdiff/security/advisories/GHSA-mw26-5g2v-hqw3 x_refsource_CONFIRM
- https://github.com/seperman/deepdiff/commit/c69c06c13f75e849c770ade3f556cd16209fd183 x_refsource_MISC
- https://github.com/seperman/deepdiff/releases/tag/8.6.1 x_refsource_MISC