RCE in Neuml Txtai

CVE-2026-58449

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.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.007 (50.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Neuml Txtai — versions 0, 11b32da720f03276199ebc5583c15fc5d1ccafd3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-58449?
CVE-2026-58449 is a critical-severity vulnerability in Neuml Txtai, classified under Code Injection. CVSS score: 9.8/10. Published 2026-06-30.
How severe is CVE-2026-58449?
Critical severity. CVSS v3 base score is 9.8 out of 10.