CVE-2026-34043
node-serialize-javascript: Serialize JavaScript to a superset of JSON that includes regular expressions and functions
CVE-2026-34043 is fixed in 14 products on 1 platform, first by DEBIAN-CVE-2026-34043, released March 31, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0049
42nd percentile
Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted "array-like" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| aspnetcore-runtime-8.0 · RHEL 8 | 0:8.0.27-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| aspnetcore-runtime-8.0 · RHEL 9 | 0:8.0.27-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| aspnetcore-runtime-8.0 · almalinux 10 | 8.0.27-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| aspnetcore-runtime-8.0 · almalinux 8 | 8.0.27-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| aspnetcore-runtime-8.0 · almalinux 9 | 8.0.27-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| aspnetcore-runtime-8.0 · ol 10 | 0:8.0.28-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| aspnetcore-runtime-8.0 · ol 8 | 0:8.0.27-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| aspnetcore-runtime-8.0 · ol 9 | 0:8.0.28-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| aspnetcore-runtime-dbg-8.0 · RHEL 8 | 0:8.0.27-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| aspnetcore-runtime-dbg-8.0 · RHEL 9 | 0:8.0.27-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| aspnetcore-runtime-dbg-8.0 · almalinux 10 | 8.0.27-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| aspnetcore-runtime-dbg-8.0 · almalinux 8 | 8.0.27-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| aspnetcore-runtime-dbg-8.0 · almalinux 9 | 8.0.27-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| aspnetcore-runtime-dbg-8.0 · ol 10 | 0:8.0.28-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| aspnetcore-runtime-dbg-8.0 · ol 8 | 0:8.0.27-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| aspnetcore-runtime-dbg-8.0 · ol 9 | 0:8.0.28-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| aspnetcore-targeting-pack-8.0 · RHEL 8 | 0:8.0.27-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| aspnetcore-targeting-pack-8.0 · RHEL 9 | 0:8.0.27-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| aspnetcore-targeting-pack-8.0 · almalinux 10 | 8.0.27-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| aspnetcore-targeting-pack-8.0 · almalinux 8 | 8.0.27-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| aspnetcore-targeting-pack-8.0 · almalinux 9 | 8.0.27-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| aspnetcore-targeting-pack-8.0 · ol 10 | 0:8.0.28-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| aspnetcore-targeting-pack-8.0 · ol 8 | 0:8.0.27-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| aspnetcore-targeting-pack-8.0 · ol 9 | 0:8.0.28-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet-apphost-pack-8.0 · RHEL 8 | 0:8.0.27-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| dotnet-apphost-pack-8.0 · RHEL 9 | 0:8.0.27-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| dotnet-apphost-pack-8.0 · almalinux 10 | 8.0.27-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| dotnet-apphost-pack-8.0 · almalinux 8 | 8.0.27-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| dotnet-apphost-pack-8.0 · almalinux 9 | 8.0.27-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| dotnet-apphost-pack-8.0 · ol 10 | 0:8.0.28-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| dotnet-apphost-pack-8.0 · ol 8 | 0:8.0.27-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| dotnet-apphost-pack-8.0 · ol 9 | 0:8.0.28-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet-hostfxr-8.0 · RHEL 8 | 0:8.0.27-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| dotnet-hostfxr-8.0 · RHEL 9 | 0:8.0.27-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| dotnet-hostfxr-8.0 · almalinux 10 | 8.0.27-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| dotnet-hostfxr-8.0 · almalinux 8 | 8.0.27-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| dotnet-hostfxr-8.0 · almalinux 9 | 8.0.27-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| dotnet-hostfxr-8.0 · ol 10 | 0:8.0.28-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| dotnet-hostfxr-8.0 · ol 8 | 0:8.0.27-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| dotnet-hostfxr-8.0 · ol 9 | 0:8.0.28-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet-runtime-8.0 · RHEL 8 | 0:8.0.27-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| dotnet-runtime-8.0 · RHEL 9 | 0:8.0.27-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| dotnet-runtime-8.0 · almalinux 10 | 8.0.27-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| dotnet-runtime-8.0 · almalinux 8 | 8.0.27-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| dotnet-runtime-8.0 · almalinux 9 | 8.0.27-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| dotnet-runtime-8.0 · ol 10 | 0:8.0.28-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| dotnet-runtime-8.0 · ol 8 | 0:8.0.27-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| dotnet-runtime-8.0 · ol 9 | 0:8.0.28-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet-runtime-dbg-8.0 · RHEL 8 | 0:8.0.27-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| dotnet-runtime-dbg-8.0 · RHEL 9 | 0:8.0.27-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| dotnet-runtime-dbg-8.0 · almalinux 10 | 8.0.27-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| dotnet-runtime-dbg-8.0 · almalinux 8 | 8.0.27-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| dotnet-runtime-dbg-8.0 · almalinux 9 | 8.0.27-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| dotnet-runtime-dbg-8.0 · ol 10 | 0:8.0.28-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| dotnet-runtime-dbg-8.0 · ol 8 | 0:8.0.27-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| dotnet-runtime-dbg-8.0 · ol 9 | 0:8.0.28-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet-sdk-8.0 · RHEL 8 | 0:8.0.127-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| dotnet-sdk-8.0 · RHEL 9 | 0:8.0.127-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| dotnet-sdk-8.0 · almalinux 10 | 8.0.127-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| dotnet-sdk-8.0 · almalinux 8 | 8.0.127-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| dotnet-sdk-8.0 · almalinux 9 | 8.0.127-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| dotnet-sdk-8.0 · ol 10 | 0:8.0.128-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| dotnet-sdk-8.0 · ol 8 | 0:8.0.127-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| dotnet-sdk-8.0 · ol 9 | 0:8.0.128-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet-sdk-8.0-source-built-artifacts · RHEL 8 | 0:8.0.127-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| dotnet-sdk-8.0-source-built-artifacts · RHEL 9 | 0:8.0.127-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| dotnet-sdk-8.0-source-built-artifacts · almalinux 10 | 8.0.127-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| dotnet-sdk-8.0-source-built-artifacts · almalinux 8 | 8.0.127-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| dotnet-sdk-8.0-source-built-artifacts · almalinux 9 | 8.0.127-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| dotnet-sdk-8.0-source-built-artifacts · ol 10 | 0:8.0.128-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| dotnet-sdk-8.0-source-built-artifacts · ol 8 | 0:8.0.127-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| dotnet-sdk-8.0-source-built-artifacts · ol 9 | 0:8.0.128-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet-sdk-dbg-8.0 · RHEL 8 | 0:8.0.127-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| dotnet-sdk-dbg-8.0 · RHEL 9 | 0:8.0.127-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| dotnet-sdk-dbg-8.0 · almalinux 10 | 8.0.127-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| dotnet-sdk-dbg-8.0 · almalinux 8 | 8.0.127-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| dotnet-sdk-dbg-8.0 · almalinux 9 | 8.0.127-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| dotnet-sdk-dbg-8.0 · ol 10 | 0:8.0.128-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| dotnet-sdk-dbg-8.0 · ol 8 | 0:8.0.127-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| dotnet-sdk-dbg-8.0 · ol 9 | 0:8.0.128-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet-targeting-pack-8.0 · RHEL 8 | 0:8.0.27-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| dotnet-targeting-pack-8.0 · RHEL 9 | 0:8.0.27-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| dotnet-targeting-pack-8.0 · almalinux 10 | 8.0.27-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| dotnet-targeting-pack-8.0 · almalinux 8 | 8.0.27-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| dotnet-targeting-pack-8.0 · almalinux 9 | 8.0.27-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| dotnet-targeting-pack-8.0 · ol 10 | 0:8.0.28-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| dotnet-targeting-pack-8.0 · ol 8 | 0:8.0.27-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| dotnet-targeting-pack-8.0 · ol 9 | 0:8.0.28-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet-templates-8.0 · RHEL 8 | 0:8.0.127-1.el8_10 | RHSA-2026:21291 | May 27, 2026 |
| dotnet-templates-8.0 · RHEL 9 | 0:8.0.127-1.el9_8 | RHSA-2026:21293 | May 27, 2026 |
| dotnet-templates-8.0 · almalinux 10 | 8.0.127-1.el10_2 | ALSA-2026:21286 | May 27, 2026 |
| dotnet-templates-8.0 · almalinux 8 | 8.0.127-1.el8_10 | ALSA-2026:21291 | May 27, 2026 |
| dotnet-templates-8.0 · almalinux 9 | 8.0.127-1.el9_8 | ALSA-2026:21293 | May 27, 2026 |
| dotnet-templates-8.0 · ol 10 | 0:8.0.128-1.0.1.el10_2 | ELSA-2026-21286 | Jul 17, 2026 |
| dotnet-templates-8.0 · ol 8 | 0:8.0.127-1.0.1.el8_10 | ELSA-2026-21291 | May 28, 2026 |
| dotnet-templates-8.0 · ol 9 | 0:8.0.128-1.0.1.el9_8 | ELSA-2026-21293 | Jun 26, 2026 |
| dotnet8.0 · RHEL 10 | 8.0.127-1.el10_0 | RHSA-2026:24332 | May 12, 2026 |
| dotnet8.0 · rocky 10 | 0:8.0.127-1.el10_2 | RLSA-2026:21286 | Jun 4, 2026 |
| dotnet8.0 · rocky 8 | 0:8.0.127-1.el8_10 | RLSA-2026:21291 | May 29, 2026 |
| dotnet8.0 · rocky 9 | 0:8.0.127-1.el9_8 | RLSA-2026:21293 | May 30, 2026 |
| node-serialize-javascript · Debian 14 | 7.0.5+~5.0.4-1 | DEBIAN-CVE-2026-34043 | Mar 31, 2026 |
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