CVE-2024-42330
JS - Internal strings in HTTP headers
The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This allows to create internal strings that can be used to access hidden properties of objects.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
JS - Internal strings in HTTP headers
The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This allows to create internal strings that can be used to access hidden properties of objects.
- Record
CVE-2024-42330- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-134
- Updated
- 2026-11-02
EUVDEUVD-2024-39876
The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This allows to create internal strings that can be used to access hidden properties of objects.
- Record
EUVD-2024-39876- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q4wv-f3rp-mjgr
The HttpRequest object allows to get the HTTP headers from the server's response after sending...
The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This allows to create internal strings that can be used to access hidden properties of objects.
- Record
GHSA-q4wv-f3rp-mjgr- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-134
- Updated
- 2026-11-02
NVD
The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This allows to create internal strings that can be used to access hidden properties of objects.
- Record
CVE-2024-42330- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-134
- Updated
- 2026-11-02
OSV
The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This allows to create internal strings that can be used to access hidden properties of objects.
- Record
CVE-2024-42330- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2024-42330
The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This allows to create internal strings that can be used to access hidden properties of objects.
- Record
DEBIAN-CVE-2024-42330- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2024-42330
The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This allows to create internal strings that can be used to access hidden properties of objects.
- Record
UBUNTU-CVE-2024-42330- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
zabbixDebian:12 |
All versions, plus listed versions 1:6.0.14+dfsg-11:6.0.23+dfsg-11:6.0.23+dfsg-1~bpo12+11:6.0.24+dfsg-11:6.0.25+dfsg-1 Show 24 moreShow less1:6.0.29+dfsg-11:7.0.0+dfsg-11:7.0.0+dfsg-21:7.0.0+dfsg-2~bpo12+11:7.0.1+dfsg-11:7.0.1+dfsg-1~bpo12+11:7.0.10+dfsg-11:7.0.10+dfsg-21:7.0.2+dfsg-11:7.0.2+dfsg-1~bpo12+11:7.0.22+dfsg-11:7.0.22+dfsg-1.11:7.0.22+dfsg-1~bpo13+11:7.0.22+dfsg-1~deb13u11:7.0.27+dfsg-11:7.0.29+dfsg-11:7.0.29+dfsg-21:7.0.29+dfsg-2~bpo13+11:7.0.3+dfsg-11:7.0.5+dfsg-11:7.0.5+dfsg-1~bpo12+11:7.0.6+dfsg-11:7.0.9+dfsg-11:7.0.9+dfsg-1~bpo12+1 |
None known |
zabbixDebian:13 |
before 1:7.0.5+dfsg-1 | 1:7.0.5+dfsg-1 |
zabbixDebian:14 |
before 1:7.0.5+dfsg-1 | 1:7.0.5+dfsg-1 |
zabbixDebian:11 From an advisory covering 5 CVEs |
before 1:5.0.45+dfsg-1+deb11u1, plus listed versions 1:5.0.14+dfsg-11:5.0.14+dfsg-1~bpo11+11:5.0.17+dfsg-11:5.0.17+dfsg-1~bpo11+11:5.0.44+dfsg-1+deb11u11:5.0.8+dfsg-1 |
1:5.0.45+dfsg-1+deb11u1 |
zabbixUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 1:2.0.6+dfsg-1ubuntu21:2.2.0+dfsg-1ubuntu11:2.2.0+dfsg-6ubuntu11:2.2.1+dfsg-1ubuntu31:2.2.2+dfsg-1ubuntu1 Show 4 moreShow less1:2.2.2+dfsg-1ubuntu1+esm11:2.2.2+dfsg-1ubuntu1+esm31:2.2.2+dfsg-1ubuntu1+esm41:2.2.2+dfsg-1ubuntu1+esm5 |
None known |
zabbixUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 1:2.4.6+dfsg-11:2.4.7+dfsg-11:2.4.7+dfsg-21:2.4.7+dfsg-2ubuntu21:2.4.7+dfsg-2ubuntu2.1 Show 4 moreShow less1:2.4.7+dfsg-2ubuntu2.1+esm11:2.4.7+dfsg-2ubuntu2.1+esm21:2.4.7+dfsg-2ubuntu2.1+esm31:2.4.7+dfsg-2ubuntu2.1+esm4 |
None known |
zabbixUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1:3.0.7+dfsg-31:3.0.12+dfsg-11:3.0.12+dfsg-1ubuntu0.1~esm11:3.0.12+dfsg-1ubuntu0.1~esm21:3.0.12+dfsg-1ubuntu0.1~esm31:3.0.12+dfsg-1ubuntu0.1~esm4 |
None known |
zabbixUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1:4.0.4+dfsg-1build21:4.0.4+dfsg-1build31:4.0.11+dfsg-11:4.0.14+dfsg-11:4.0.15+dfsg-1 Show 5 moreShow less1:4.0.16+dfsg-11:4.0.16+dfsg-1build11:4.0.17+dfsg-11:4.0.17+dfsg-1ubuntu0.1~esm11:4.0.17+dfsg-1ubuntu0.1~esm2 |
None known |
zabbixUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 1:5.0.8+dfsg-1build11:5.0.14+dfsg-11:5.0.17+dfsg-11:5.0.17+dfsg-1ubuntu0.1~esm1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-42330 is a critical vulnerability (CVSS 9.1) in Zabbix Frontend, published November 27, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.95%, the 61st percentile. Fixed in zabbix 1:7.0.5+dfsg-1.