CVE catalog
CVE-2026-34043
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 seri
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.47% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | node-serialize-javascript | sid | 7.1.4+~5.0.4-1 | fixed |
| Debian | node-serialize-javascript | forky | 7.1.4+~5.0.4-1 | fixed |
| Debian | node-serialize-javascript | trixie | 6.0.2-1 | vulnerable |
| Debian | node-serialize-javascript | bookworm | 6.0.0-2+deb12u1 | vulnerable |
| Cpe | node-serialize-javascript | Not reported | Not reported | vulnerable |
| Cpe | serialize | Not reported | 7.0.5 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | node-serialize-javascript | source | sid | 7.0.5+~5.0.4-1 | not yet assigned | Not reported | [1132605] |
| Debian | node-serialize-javascript | source | forky | 7.0.5+~5.0.4-1 | not yet assigned | Not reported | [1132605] |
| Debian | node-serialize-javascript | source | trixie | (unfixed) | not yet assigned | Not reported | [1132605] |
| Debian | node-serialize-javascript | source | bookworm | (unfixed) | not yet assigned | Not reported | [1132605] |
| Cpe | serialize | cpe | Not reported | 7.0.5 | Not reported | Not reported | Not reported |
Notes
[trixie] node-serialize-javascript: Minor issue [bookworm] node-serialize-javascript: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [node-serialize-javascript]Affected
Details (2)
6.0.0-2+deb12u1· all · bookwormAffected
nvd · node-serialize-javascript · debian · bookworm; nvd · node-serialize-javascript · debian · 12
6.0.0-2+deb12u1· all · bookwormAffected
nvd · node-serialize-javascript · debian · bookworm; nvd · node-serialize-javascript · debian · 12
[Debian 13 (Trixie)]
- [node-serialize-javascript]Affected
Details (2)
6.0.2-1· all · trixieAffected
nvd · node-serialize-javascript · debian · 13
6.0.2-1· all · trixieAffected
nvd · node-serialize-javascript · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_21286.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-34043]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-34043]
- [https://security-tracker.debian.org/tracker/CVE-2026-34043]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34043.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1058.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]