# CVE-2022-24999: node-express: qs before 6.10.3, as used in Express before 4.17.3 and other products, allows attackers to cause a Node process hang...

CVE-2022-24999 is fixed in 9 products on 1 platform, first by node-express 4.17.1-2ubuntu0.1~esm2, released November 26, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-24999
- Priority: High
- CVSS: 9.8 (Medium)
- EPSS: 0.1570
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 26, 2022

## Description

qs before 6.10.3, as used in Express before 4.17.3 and other products, allows attackers to cause a Node process hang for an Express application because an __ proto__ key can be used. In many typical Express use cases, an unauthenticated remote attacker can place the attack payload in the query string of the URL that is used to visit the application, such as a[__proto__]=b&a[__proto__]&a[length]=100000000. The fix was backported to qs 6.9.7, 6.8.3, 6.7.3, 6.6.1, 6.5.3, 6.4.1, 6.3.3, and 6.2.4 (and therefore Express 4.17.3, which has "deps: qs@6.9.7" in its release description, is not vulnerable).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-express Ubuntu 20.04 LTS (focal) | 4.17.1-2ubuntu0.1~esm2 | [node-express 4.17.1-2ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-node-express-4.17.1-2ubuntu0.1-esm2.md) | Nov 26, 2022 |
| Linux | node-qs Debian 12.15 (bookworm) | 6.10.3+ds+~6.9.7-1 | [DEBIAN-CVE-2022-24999](https://patchblox.com/security/data/fix/linux/debian-cve-2022-24999.md) | Nov 26, 2022 |
| Linux | node-qs Debian 13.5 (trixie) | 6.10.3+ds+~6.9.7-1 | [DEBIAN-CVE-2022-24999](https://patchblox.com/security/data/fix/linux/debian-cve-2022-24999.md) | Nov 26, 2022 |
| Linux | node-qs Debian 14 | 6.10.3+ds+~6.9.7-1 | [DEBIAN-CVE-2022-24999](https://patchblox.com/security/data/fix/linux/debian-cve-2022-24999.md) | Nov 26, 2022 |
| Linux | node-qs Ubuntu 20.04 LTS (focal) | 6.9.1+ds-1ubuntu0.1~esm1 | [node-qs 6.9.1+ds-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-node-qs-6.9.1-ds-1ubuntu0.1-esm1.md) | Nov 26, 2022 |
| Linux | nodejs RHEL 8 | 1:14.21.1-2.module+el8.7.0+17528+a329cd47 | [RHSA-2023:0050](https://patchblox.com/security/data/fix/linux/rhsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs almalinux 8 | 1:14.21.1-2.module_el8.7.0+3373+a4c18c43 | [ALSA-2023:0050](https://patchblox.com/security/data/fix/linux/alsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs ol 8 | 1:14.21.1-2.module+el8.7.0+20895+79a25710 | [ELSA-2023-0050](https://patchblox.com/security/data/fix/linux/elsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs rocky 8 | 1:14.21.1-2.module+el8.7.0+1116+bd2a84b4 | [RLSA-2023:0050](https://patchblox.com/security/data/fix/linux/rlsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-devel RHEL 8 | 1:14.21.1-2.module+el8.7.0+17528+a329cd47 | [RHSA-2023:0050](https://patchblox.com/security/data/fix/linux/rhsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-devel almalinux 8 | 1:14.21.1-2.module_el8.7.0+3373+a4c18c43 | [ALSA-2023:0050](https://patchblox.com/security/data/fix/linux/alsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-devel ol 8 | 1:14.21.1-2.module+el8.7.0+20895+79a25710 | [ELSA-2023-0050](https://patchblox.com/security/data/fix/linux/elsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-docs RHEL 8 | 1:14.21.1-2.module+el8.7.0+17528+a329cd47 | [RHSA-2023:0050](https://patchblox.com/security/data/fix/linux/rhsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-docs almalinux 8 | 1:14.21.1-2.module_el8.7.0+3373+a4c18c43 | [ALSA-2023:0050](https://patchblox.com/security/data/fix/linux/alsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-docs ol 8 | 1:14.21.1-2.module+el8.7.0+20895+79a25710 | [ELSA-2023-0050](https://patchblox.com/security/data/fix/linux/elsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-full-i18n RHEL 8 | 1:14.21.1-2.module+el8.7.0+17528+a329cd47 | [RHSA-2023:0050](https://patchblox.com/security/data/fix/linux/rhsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-full-i18n almalinux 8 | 1:14.21.1-2.module_el8.7.0+3373+a4c18c43 | [ALSA-2023:0050](https://patchblox.com/security/data/fix/linux/alsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-full-i18n ol 8 | 1:14.21.1-2.module+el8.7.0+20895+79a25710 | [ELSA-2023-0050](https://patchblox.com/security/data/fix/linux/elsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-nodemon RHEL 8 | 0:2.0.20-2.module+el8.7.0+17528+a329cd47 | [RHSA-2023:0050](https://patchblox.com/security/data/fix/linux/rhsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-nodemon almalinux 8 | 2.0.20-2.module_el8.7.0+3373+a4c18c43 | [ALSA-2023:0050](https://patchblox.com/security/data/fix/linux/alsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-nodemon ol 8 | 0:2.0.20-2.module+el8.7.0+20895+79a25710 | [ELSA-2023-0050](https://patchblox.com/security/data/fix/linux/elsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-nodemon rocky 8 | 0:2.0.20-2.module+el8.7.0+1108+49363b0d | [RLSA-2023:0050](https://patchblox.com/security/data/fix/linux/rlsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-packaging RHEL 8 | 0:23-3.module+el8.3.0+6519+9f98ed83 | [RHSA-2023:0050](https://patchblox.com/security/data/fix/linux/rhsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-packaging almalinux 8 | 23-3.module_el8.4.0+2522+3bd42762 | [ALSA-2023:0050](https://patchblox.com/security/data/fix/linux/alsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-packaging ol 8 | 0:23-3.module+el8.3.0+7818+6cd30d85 | [ELSA-2023-0050](https://patchblox.com/security/data/fix/linux/elsa-2023-0050.md) | Jan 9, 2023 |
| Linux | nodejs-packaging rocky 8 | 0:23-3.module+el8.7.0+1071+4bdda2a8 | [RLSA-2023:0050](https://patchblox.com/security/data/fix/linux/rlsa-2023-0050.md) | Jan 9, 2023 |
| Linux | npm RHEL 8 | 1:6.14.17-1.14.21.1.2.module+el8.7.0+17528+a329cd47 | [RHSA-2023:0050](https://patchblox.com/security/data/fix/linux/rhsa-2023-0050.md) | Jan 9, 2023 |
| Linux | npm almalinux 8 | 1:6.14.17-1.14.21.1.2.module_el8.7.0+3373+a4c18c43 | [ALSA-2023:0050](https://patchblox.com/security/data/fix/linux/alsa-2023-0050.md) | Jan 9, 2023 |
| Linux | npm ol 8 | 1:6.14.17-1.14.21.1.2.module+el8.7.0+20895+79a25710 | [ELSA-2023-0050](https://patchblox.com/security/data/fix/linux/elsa-2023-0050.md) | Jan 9, 2023 |

---

Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.