# CVE-2026-11466: zilliztech deep-searcher collection_router.py CollectionRouter.invoke access control

> Remote attackers can bypass access controls in the CollectionRouter.invoke function of the deep-searcher library to perform unauthorized actions.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Jun 2026
- **Updated:** 8 Jun 2026
- **Also known as:** GHSA-43px-gpwc-q84v, PYSEC-2026-3567

## What is CVE-2026-11466?

CVE-2026-11466 is a medium-severity missing authorization vulnerability in zilliztech deep-searcher, published on 7 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A weakness has been identified in zilliztech deep-searcher up to 0.0.2. This affects the function CollectionRouter.invoke of the file deepsearcher/agent/collection_router.py. This manipulation of the argument kwargs causes improper access controls. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.

Weakness: CWE-284 (Improper Access Control), CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2026-11466?

3 open source packages ship an affected version, including deepsearcher.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `deepsearcher` | PyPI | All versions to 0.0.2 | None |
| `deepsearcher` | PyPI | All versions to 0.0.2 | None |
| `deepsearcher` | PyPI | All versions to 0.0.2 | None |

## How do I fix CVE-2026-11466?

No fix has been published for CVE-2026-11466 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11466 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11466 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11466 and fix it if it is affected.

What it is: CVE-2026-11466 is a medium-severity missing authorization vulnerability in zilliztech deep-searcher, published on 7 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11466 exists.

Affected packages and fixed versions:
- deepsearcher (PyPI): affected all versions up to 0.0.2; no fix listed
- deepsearcher (PyPI): affected all versions up to 0.0.2; no fix listed
- deepsearcher (PyPI): affected all versions up to 0.0.2; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11466/ (Markdown: https://insights.sbomify.com/CVE-2026-11466/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11466
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11466
- OSV: https://osv.dev/vulnerability/CVE-2026-11466

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11466/
Summaries are generated and may contain mistakes; the official description above is the record.