# CVE-2026-3193: Chia Blockchain send_transaction cross-site request forgery

> An attacker can perform cross-site request forgery on the Chia Blockchain send_transaction endpoint to modify data, though exploitation is difficult.

- **Severity:** Low 2.3 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 25 Feb 2026
- **Updated:** 27 Feb 2026
- **Also known as:** GHSA-4g2q-86h2-35w4

## What is CVE-2026-3193?

CVE-2026-3193 is a low-severity vulnerability in Chia Blockchain, published on 25 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability was detected in Chia Blockchain 2.1.0. Impacted is an unknown function of the file /send_transaction. The manipulation results in cross-site request forgery. The attack may be performed from remote. The attack requires a high level of complexity. The exploitability is considered difficult. The exploit is now public and may be used. The vendor was informed early via email. A separate report via bugbounty was rejected with the reason "This is by design. The user is responsible for host security".

Weakness: CWE-862 (Missing Authorization), CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2026-3193?

It affects 1 product.


Products: Chia Blockchain.

## How do I fix CVE-2026-3193?

No fix has been published for CVE-2026-3193 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3193 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3193 exists.

## Other vulnerabilities in Chia Blockchain

- [CVE-2026-3192](https://insights.sbomify.com/CVE-2026-3192/): Chia Blockchain RPC Credential rpc_server_base.py _authenticate improper authentication (medium 6.3)
- [CVE-2026-3194](https://insights.sbomify.com/CVE-2026-3194/): Chia Blockchain RPC Server Master Passphrase get_private_key missing authentication (low 2.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3193 and fix it if it is affected.

What it is: CVE-2026-3193 is a low-severity vulnerability in Chia Blockchain, published on 25 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3193 exists.

Affected product: Chia Blockchain. 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-2026-3193/ (Markdown: https://insights.sbomify.com/CVE-2026-3193/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3193
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3193
- OSV: https://osv.dev/vulnerability/CVE-2026-3193

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-3193/
Summaries are generated and may contain mistakes; the official description above is the record.