CVE-2025-71378 json
picklescan - Remote Code Execution via Undetected cProfile.runctx in Pickle Files
published last yr. modified yesterday also EUVD-2025-210294 , GHSA-9w88-8rmg-7g2p , PYSEC-2026-247
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
picklescan before 0.0.30 fails to detect cProfile.runctx function calls in pickle file reduce methods, allowing attackers to execute arbitrary code. Malicious pickle files bypass picklescan detection and execute remote code when loaded via pickle.load().
Patch / fix
Is CVE-2025-71378 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 4mo ago
Exploit prediction
0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9w88-8rmg-7g2p referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.6 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 7.6 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | picklescan | <0.0.30 |
0.0.30 |
Affected products
- picklescan picklescan
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/mmaitre314/picklescan/commit/1931c2d04eaca8d20597705ff39cab78ba364e4b
web
-
github.com
/mmaitre314/picklescan/security/advisories/GHSA-9w88-8rmg-7g2p
vendor-advisory, exploit, web, evidence
-
vulncheck.com
/advisories/picklescan-remote-code-execution-via-undetected-cprofile-runctx-in-pickle-files
third-party-advisory, web, advisory
-
github.com
/mmaitre314/picklescan
package
-
github.com
/pypa/advisory-database/tree/main/vulns/picklescan/PYSEC-2026-247.yaml
web
Sources
- CVE List CVE-2025-71378
- GitHub Advisory GHSA-9w88-8rmg-7g2p
- NVD CVE-2025-71378
- OSV PYSEC-2026-247
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.