# CVE-2023-34451: GO-2023-1883 - Denial of service via OOM in github.com/cometbft/cometbft

Source: https://junglewise.ai/threats/cve-2023-34451-cometbft-may-duplicate-transactions-in-the-mempool-s-data  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-07-13  
License: CC BY 4.0 with a link back

CVE-2023-34451 · Severity: low · CVSS 3.1 · Published 2023-07-13

Denial of service via OOM in github.com/cometbft/cometbft

Technologies: [github.com/cometbft/cometbft (Go)](https://junglewise.ai/threats/technologies/github-com-cometbft-cometbft). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2023-34451 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-34451 being exploited in the wild.

**How severe is CVE-2023-34451?** Low severity, with a CVSS score of 3.1, published 13 July 2023.

**Which products and versions are affected?** github.com/cometbft/cometbft (Go) SEMVER:introduced=0,fixed=0.34.29, SEMVER:introduced=0,fixed=0.37.2.

**Is there a fix for CVE-2023-34451?** Yes. github.com/cometbft/cometbft (Go): upgrade to 0.34.29, 0.37.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2023-34451?** Check whether you run github.com/cometbft/cometbft (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/cometbft/cometbft (Go): upgrade to 0.34.29, 0.37.2 or later

  ```sh
  go get github.com/cometbft/cometbft@v0.37.2
  ```


## Affected products

- github.com/cometbft/cometbft (Go) SEMVER:introduced=0,fixed=0.34.29, SEMVER:introduced=0,fixed=0.37.2

## Identifiers

- CVE-2023-34451
- GHSA-w24w-wp77-qffm
- GO-2023-1883

## Related threats

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- [CometBFT has inconsistencies between how commit signatures are verified and how block time is derived](https://junglewise.ai/threats/cometbft-has-inconsistencies-between-how-commit-signatures-are-verified-17e99f94)
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- [CometBFT's invalid BitArray handling can lead to network halt](https://junglewise.ai/threats/cometbft-s-invalid-bitarray-handling-can-lead-to-network-halt-df96de9f)
- [GO-2025-3443 - CometBFT allows a malicious peer to stall network by disseminating valid-looking block parts in…](https://junglewise.ai/threats/go-2025-3443-cometbft-allows-a-malicious-peer-to-stall-network-by-84bcffee)