CVE-2025-71349 json
picklescan - Arbitrary Code Execution via Undetected trace.Trace.run in Pickle Files
published last yr. modified 28d ago also EUVD-2025-210385 , GHSA-5qwp-399c-mjwf
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
picklescan before 0.0.29 fails to detect the built-in trace.Trace.run function when analyzing pickle files, allowing attackers to embed undetected malicious code. Remote attackers can craft malicious pickle files using trace.Trace.run in the reduce method to achieve arbitrary code execution when pickle.load processes the file.
Patch / fix
Is CVE-2025-71349 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
- partial
- Assessed
- 4mo ago
Exploit prediction
0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/mmaitre314/picklescan/security/advisories/GHSA-5qwp-399c-mjwf 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 |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | picklescan | <0.0.29 |
0.0.29 |
Affected products
- picklescan picklescan
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/mmaitre314/picklescan/commit/aecd11be98702caa9ba9b12189d91ad596a36114
web
-
github.com
/mmaitre314/picklescan/security/advisories/GHSA-5qwp-399c-mjwf
vendor-advisory, exploit, web
-
vulncheck.com
/advisories/picklescan-arbitrary-code-execution-via-undetected-trace-trace-run-in-pickle-files
third-party-advisory
-
github.com
/mmaitre314/picklescan
package
Sources
- CVE List CVE-2025-71349
- GitHub Advisory GHSA-5qwp-399c-mjwf
- NVD CVE-2025-71349
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.