---
id: CVE-2024-1410
aliases:
  - GHSA-xhg9-xwch-vr7x
title: >-
  quiche vulnerable to unbounded storage of information related to connection ID
  retirement
summary: >-
  quiche vulnerable to unbounded storage of information related to connection ID
  retirement
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'
vendor: quiche
product: quiche
ecosystem: rust
affected:
  - quiche < 0.19.2
  - 'quiche >= 0.20.0, < 0.20.1'
patched:
  - quiche 0.19.2
  - quiche 0.20.1
published: '2024-03-13'
updated: '2026-07-08'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-xhg9-xwch-vr7x'
references:
  - url: >-
      https://github.com/cloudflare/quiche/security/advisories/GHSA-xhg9-xwch-vr7x
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2024-1410'
  - url: >-
      https://github.com/cloudflare/quiche/commit/0c5733a84c41e9e178adc866b11ce59ac264f5af
  - url: >-
      https://github.com/cloudflare/quiche/commit/5be8143126f8cfa8a483d4a5ae475b9a46053fa1
  - url: >-
      https://github.com/cloudflare/quiche/commit/7ab42af5f5e97f20f1d63b7ea2f9ab0536678c40
  - url: >-
      https://github.com/cloudflare/quiche/commit/a983998c4408605905ee9a6ab0fc00e68436ac67
  - url: 'https://github.com/cloudflare/quiche'
  - url: 'https://github.com/cloudflare/quiche/releases/tag/0.19.2'
  - url: 'https://github.com/cloudflare/quiche/releases/tag/0.20.1'
tags:
  - osv
  - rust
epss: 0.00662
epssPercentile: 0.49476
ingestedAt: '2026-07-09T18:56:37.343Z'
---

## Overview

### Impact

Cloudflare quiche was discovered to be vulnerable to unbounded storage of information related to connection ID retirement, which could lead to excessive resource consumption. Each QUIC connection possesses a set of connection Identifiers (IDs); see [RFC 9000 Section 5.1](https://datatracker.ietf.org/doc/html/rfc9000#section-5.1). Endpoints declare the number of active connection IDs they are willing to support using the active_connection_id_limit transport parameter. The peer can create new IDs using a NEW_CONNECTION_ID frame but must stay within the active ID limit. This is done by retirement of old IDs, the endpoint sends NEW_CONNECTION_ID includes a value in the retire_prior_to field, which elicits a RETIRE_CONNECTION_ID frame as confirmation. An unauthenticated remote attacker can exploit the vulnerability by sending NEW_CONNECTION_ID frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that RETIRE_CONNECTION_ID frames can only be sent at a slower rate than they are received, leading to storage of information related to connection IDs in an unbounded queue. 

### Patches

Quiche versions 0.19.2 and 0.20.1 are the earliest to address this problem. There is no workaround for affected versions.

## Affected packages

- `quiche < 0.19.2`
- `quiche >= 0.20.0, < 0.20.1`

## Remediation

Upgrade to a patched release:

- `quiche 0.19.2`
- `quiche 0.20.1`