qs vulnerable to Prototype Pollution
qs before 6.10.3 allows attackers to cause a Node process hang because an __ proto__ key can be used. In many typical web framework 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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | qs | >= 6.10.0, < 6.10.3, >= 6.9.0, < 6.9.7, >= 6.8.0, < 6.8.3, >= 6.7.0, < 6.7.3, >= 6.6.0, < 6.6.1, >= 6.5.0, < 6.5.3, >= 6.4.0, < 6.4.1, >= 6.3.0, < 6.3.3, < 6.2.4 | 6.10.3, 6.9.7, 6.8.3, 6.7.3, 6.6.1, 6.5.3, 6.4.1, 6.3.3, 6.2.4 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2022-24999
- https://github.com/ljharb/qs/pull/428
- https://github.com/ljharb/qs/commit/4310742efbd8c03f6495f07906b45213da0a32ec
- https://github.com/ljharb/qs/commit/727ef5d34605108acb3513f72d5435972ed15b68
- https://github.com/ljharb/qs/commit/73205259936317b40f447c5cdb71c5b341848e1b
- https://github.com/ljharb/qs/commit/8b4cc14cda94a5c89341b77e5fe435ec6c41be2d
- https://github.com/ljharb/qs/commit/ba24e74dd17931f825adb52f5633e48293b584e1
- https://github.com/ljharb/qs/commit/e799ba57e573a30c14b67c1889c7c04d508b9105
- https://github.com/ljharb/qs/commit/ed0f5dcbef4b168a8ae299d78b1e4a2e9b1baf1f
- https://github.com/ljharb/qs/commit/f945393cfe442fe8c6e62b4156fd35452c0686ee
- https://github.com/ljharb/qs/commit/fc3682776670524a42e19709ec4a8138d0d7afda
- https://github.com/expressjs/express/releases/tag/4.17.3
- https://github.com/ljharb/qs
- https://github.com/n8tz/CVE-2022-24999
- https://lists.debian.org/debian-lts-announce/2023/01/msg00039.html
- https://security.netapp.com/advisory/ntap-20230908-0005
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-1321- Platform
- npm
- Package
qs- Disclosed
- 27.11.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-hrpp-h998-j3pp - CC BY 4.0
Vulnerability history: qs
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 9
- First → latest
- 10.2017 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 4
- Medium 4
- Low 1
Disclosures per year
- 2017: 1
- 2018: 1
- 2019: 0
- 2020: 1
- 2021: 0
- 2022: 1
- 2023: 0
- 2024: 0
- 2025: 1
- 2026: 4
-
qs vulnerable to Prototype Pollution this entry
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