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Arbitrary module import in hydra-ray-launcher

Priority LOW 21CWE-470Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

hydra-ray-launcher from 1.1.0.dev1 before 1.2.2 and from 1.4.0.dev4 before 1.4.0rc2 contains an arbitrary module import flaw (CWE-470) in its ray_pkg_version OmegaConf resolver, which passes input to importlib.import_module(). A local attacker with low privileges who controls configuration values or command-line overrides can make the application import any installed module, which runs that module's import-time side effects in the application process.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

hydra-ray-launcher 1.1.0.dev1 before 1.2.2 and 1.4.0.dev4 before 1.4.0rc2 contains an arbitrary module import vulnerability via the ray_pkg_version OmegaConf resolver passing input to importlib.import_module(). Attackers controlling configuration values or command-line overrides can supply a ray_pkg_version interpolation to import any installed module, triggering its import-time side effects in the application process.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0022 12th percentileScored 2026-11-07
Fix Fixed hydra-ray-launcher (hydra-ecosystem): 1.2.2, 1.4.0rc2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
hydra-ecosystemhydra-ray-launcher1.1.0.dev1 to before 1.2.2; 1.4.0.dev4 to before 1.4.0rc21.2.2, 1.4.0rc2Patch availableCNA
  • hydra-ray-launcher Vendorhydra-ecosystem Affected 1.1.0.dev1 to before 1.2.2; 1.4.0.dev4 to before 1.4.0rc2 Fixed in 1.2.2, 1.4.0rc2 Patch available CNA

Remediation

The fixed versions are hydra-ray-launcher 1.2.2 and 1.4.0rc2. Upgrade to one of these versions.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA hydra-ray-launcher (hydra-ecosystem) Fixed in 1.2.2, 1.4.0rc2

Timeline

  1. 2026-10-23 Threatist record created from CVE-2026-115749
  2. 2026-10-23 CISA SSVC decision points changed
  3. 2026-10-23 Alias added: GHSA-7vmw-xf27-46r9

References

  • TI-2026-68891 Mutable policy state in Hydra allows blocklist bypass CVSS 4.0HIGH 8.5
  • TI-2026-68892 Hydra Optuna sweeper executes untrusted callables from configuration CVSS 3.1HIGH 7.8
  • TI-2026-68894 Hydra instantiate() blacklist bypass allows code execution CVSS 3.1HIGH 7.8
  • TI-2026-68893 Hydra logging configuration lets attackers invoke importable classes CVSS 3.1HIGH 7.8

Sources