onyx --cves cve-2026-21710
CVE-2026-21710
- score
- 0.3
- cvss
- 7.5
- epss
- 25.0%
- published
- 2026-03-30
- kev added
- —
- first seen
Node.js HTTP servers 20.x, 22.x, 24.x, and v25.x contain a denial of service caused by uncaught TypeError triggered by requests with '__proto__' header accessing req.headersDistinct, letting attackers crash the server, exploit requires sending crafted HTTP requests.
Timeline
How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.
- Published
- Tracked by Onyx
- Public PoC
Exploit availability
Public PoC flagged by vulnx; no direct exploit link among the citations.
Weaknesses
References 16
- https://access.redhat.com/security/cve/CVE-2026-21710
- https://access.redhat.com/errata/RHSA-2026:7302
- https://access.redhat.com/errata/RHSA-2026:7310
- https://access.redhat.com/errata/RHSA-2026:9711
- https://access.redhat.com/errata/RHSA-2026:9874
- https://access.redhat.com/errata/RHSA-2026:7123
- https://access.redhat.com/errata/RHSA-2026:7983
- https://bugzilla.redhat.com/show_bug.cgi?id=2453151
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-21710.json
- https://access.redhat.com/errata/RHSA-2026:7080
- https://access.redhat.com/errata/RHSA-2026:7670
- https://access.redhat.com/errata/RHSA-2026:8339
- https://nodejs.org/en/blog/vulnerability/march-2026-security-releases
- https://access.redhat.com/errata/RHSA-2026:7350
- https://access.redhat.com/errata/RHSA-2026:7675
- https://access.redhat.com/errata/RHSA-2026:7896