# CVE-2020-11090: Uncontrolled Resource Consumption in Indy Node

> A malformed transaction can crash the primary node, causing repeated view changes that potentially bring down the entire network.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 11 Jun 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-3gw4-m5w7-v89c, PYSEC-2020-47

## What is CVE-2020-11090?

CVE-2020-11090 is a high-severity denial of service vulnerability in Hyperledger Indy Node, published on 11 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In Indy Node 1.12.2, there is an Uncontrolled Resource Consumption vulnerability. Indy Node has a bug in TAA handling code. The current primary can be crashed with a malformed transaction from a client, which leads to a view change. Repeated rapid view changes have the potential of bringing down the network. This is fixed in version 1.12.3.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2020-11090?

3 open source packages ship an affected version, including indy-node. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `indy-node` | PyPI | All versions | 1.12.3 |
| `indy-node` | PyPI | From 1.12.2 | 1.12.3 |
| `indy-node` | PyPI | From 1.12.2 | 1.12.3 |

Products: Linuxfoundation Indy-Node.

## How do I fix CVE-2020-11090?

Upgrade indy-node to 1.12.3 or later.

## Is CVE-2020-11090 being exploited?

There is no known exploitation of CVE-2020-11090 in the wild and no public exploit code.

## Other vulnerabilities in Hyperledger Indy Node

- [CVE-2022-31020](https://insights.sbomify.com/CVE-2022-31020/): Remote code execution in Indy's NODE_UPGRADE transaction (high 8.8)
- [CVE-2022-31006](https://insights.sbomify.com/CVE-2022-31006/): Hyperledger Indy DOS vulnerability (high 7.5)
- [CVE-2020-11093](https://insights.sbomify.com/CVE-2020-11093/): Authorization bypass in Hyperledger Indy (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-11090 and fix it if it is affected.

What it is: CVE-2020-11090 is a high-severity denial of service vulnerability in Hyperledger Indy Node, published on 11 Jun 2020. 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-2020-11090 in the wild and no public exploit code.

Affected packages and fixed versions:
- indy-node (PyPI): affected all versions; fixed in 1.12.3
- indy-node (PyPI): affected from 1.12.2; fixed in 1.12.3
- indy-node (PyPI): affected from 1.12.2; fixed in 1.12.3

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-2020-11090/ (Markdown: https://insights.sbomify.com/CVE-2020-11090/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-11090
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-11090
- OSV: https://osv.dev/vulnerability/CVE-2020-11090

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-11090/
Summaries are generated and may contain mistakes; the official description above is the record.