CVE-2025-10279 json
Privilege Escalation in mlflow/mlflow
published 2026-02-02 9 mo ago modified 2026-09-10 1 mo ago also BIT-mlflow-2025-10279 , EUVD-2025-206598 , GHSA-4x5p-f36r-mxxr , PYSEC-2026-1639
- cvss
- 7.0
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
In mlflow version 2.20.3, the temporary directory used for creating Python virtual environments is assigned insecure world-writable permissions (0o777). This vulnerability allows an attacker with write access to the `/tmp` directory to exploit a race condition and overwrite `.py` files in the virtual environment, leading to arbitrary code execution. The issue is resolved in version 3.4.0.
Patch / fix
- pypi mlflow 3.4.0rc0
- bitnami mlflow 3.4.0
- mlflow mlflow/mlflow 3.4.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 9 mo ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.com https://huntr.com/bounties/01d3b81e-13d1-43aa-b91a-443aec68bdc8 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.0 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.0 | 7.0 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.0 | 7.0 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | mlflow | <3.4.0rc0 |
3.4.0rc0 |
| bitnami | mlflow | <3.4.0 |
3.4.0 |
Affected products
- mlflow mlflow/mlflow
Classification
- Weakness
-
- CWE-379 Creation of Temporary File in Directory with Insecure Permissions
References
-
github.com
/mlflow/mlflow/commit/1d7c8d4cf0a67d407499a8a4ffac387ea4f8194a
web, patch
-
huntr.com
/bounties/01d3b81e-13d1-43aa-b91a-443aec68bdc8
web, exploit, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2025-10279
advisory, web
-
github.com
/mlflow/mlflow
package
-
pypi.org
/project/mlflow
package
-
github.com
/advisories/GHSA-4x5p-f36r-mxxr
advisory
Sources
- CVE List CVE-2025-10279
- GitHub Advisory GHSA-4x5p-f36r-mxxr
- NVD CVE-2025-10279
- OSV BIT-mlflow-2025-10279
- OSV PYSEC-2026-1639
Fencer Vulns 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.