CVE-2026-106440
Hydra is a framework for elegantly configuring complex applications. From 1.2.0 until 1.3.0 and 1.4.0.dev10, the hydra-optuna-sweeper package accepts a configuration-controlled dotted path in hydra.sweeper.custom_search_space, resolves it with hydra.utils.get_method(), and later invokes the returned callable in the Hydra controller process. Because get_method() is a trusted-input lookup helper and does not apply the execution policy used by instantiate(), an attacker who controls Optuna sweep configuration or command-line overrides can select importable Python code for execution with the application's privileges, including bypassing a trusted execution whitelist on affected Hydra 1.4 development releases. This issue is fixed in versions 1.3.0 and 1.4.0.dev10.
- CVSS 3.1
- 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-25)
- CWE
- CWE-470
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5jjj-9xc3-rm56 | PyPI | hydra-optuna-sweeper | >=1.2.0 <1.3.0 | 1.3.0 |
| GHSA-5jjj-9xc3-rm56 | PyPI | hydra-optuna-sweeper | >=1.4.0.dev4 <1.4.0.dev10 | 1.4.0.dev10 |
| PYSEC-2026-4224 | PyPI | hydra-optuna-sweeper | >=1.2.0 <1.3.0 >=1.4.0.dev4 <1.4.0.dev10 | 1.3.0, 1.4.0.dev10 |
References
- https://github.com/hydra-ecosystem/hydra/commit/0dd18084589a3d3e577d1f1a8a48fb485c94a5e6
- https://github.com/hydra-ecosystem/hydra/commit/4720dfca2bde27fa140ec287a05709668fbdf168
- https://github.com/hydra-ecosystem/hydra/releases/tag/v1.3.7
- https://github.com/hydra-ecosystem/hydra/security/advisories/GHSA-5jjj-9xc3-rm56