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01 Record

CVE-2026-106440

Hydra: Optuna custom_search_space can resolve and execute untrusted callables via get_method

HighPUBLISHEDCNA: GitHub_M
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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02 Description

Hydra: Optuna custom_search_space can resolve and execute untrusted callables via get_method

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.27% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 19.1% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-09.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-06 18:51Z22 DAYS AGO
Last updated
2026-10-09 01:39Z20 DAYS AGO
Reserved
2026-10-06
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-470Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')Base
Data version
5.2
Document digest
b5a54fd6f2be92860387f8799b608d40c4719a05bf334754231f09750a828711

05 Affected products

VendorProductVersionsPlatforms
hydra-ecosystemhydra>= 1.2.0, < 1.3.0, >= 1.4.0.dev4, < 1.4.0.dev10—

06 References