# CVE-2026-93556: Direct references to unsafe objects (IDOR) in Tankuam Places by Kompini

> An unauthenticated attacker can reset passwords for any user, including admins, by manipulating the user ID parameter in the password recovery endpoint.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Sep 2026
- **Updated:** 22 Sep 2026
- **Also known as:** GHSA-m39c-xj94-687f

## What is CVE-2026-93556?

CVE-2026-93556 is a critical authentication bypass vulnerability in Kompini Tankuam Places, published on 22 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The ‘/password/guardarClau/recover’ endpoint accepts the ‘usuariId’ parameter, which specifies the account whose password is to be changed. The JWT token for the recovery process is not validated against the user specified in that parameter. An unauthenticated attacker could manipulate the identifier and reset the password for any account, including administrative accounts, which could allow them to take control of the account.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-93556?


## How do I fix CVE-2026-93556?

No fix has been published for CVE-2026-93556 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-93556 being exploited?

There is no known exploitation of CVE-2026-93556 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-93556 and fix it if it is affected.

What it is: CVE-2026-93556 is a critical authentication bypass vulnerability in Kompini Tankuam Places, published on 22 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-93556 in the wild and no public exploit code.

Affected product: Kompini Tankuam Places. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2026-93556/ (Markdown: https://insights.sbomify.com/CVE-2026-93556/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-93556
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-93556
- OSV: https://osv.dev/vulnerability/CVE-2026-93556

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-93556/
Summaries are generated and may contain mistakes; the official description above is the record.