CVE-2026-48068 is a high-severity (CVSS 7.5) CWE-248 vulnerability in @grpc/grpc-js. A fix is available for @grpc/grpc-js — see the affected versions and patch details below.
@grpc/grps-js: A malformed request can cause a server crash
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-48068.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2026-48068 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 390,400 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
@grpc/grpc-jsnpmDescription
@grpc/grps-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.9.16, 1.10.12, 1.11.4, 1.12.7, 1.13.5, and 1.14.4, an invalid incoming HTTP/2 stream initiation can cause a server process created using @grpc/grpc-js to crash. This issue is fixed in versions 1.9.16, 1.10.12, 1.11.4, 1.12.7, 1.13.5, and 1.14.4.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @grpc/grpc-js | all versions | 1.9.16npm install @grpc/grpc-js@1.9.16 |
| 📦npm | @grpc/grpc-js | ≥ 1.10.0&&< 1.10.12 | 1.10.12npm install @grpc/grpc-js@1.10.12 |
| 📦npm | @grpc/grpc-js | ≥ 1.11.0&&< 1.11.4 | 1.11.4npm install @grpc/grpc-js@1.11.4 |
| 📦npm | @grpc/grpc-js | ≥ 1.12.0&&< 1.12.7 | 1.12.7npm install @grpc/grpc-js@1.12.7 |
| 📦npm | @grpc/grpc-js | ≥ 1.13.0&&< 1.13.5 | 1.13.5npm install @grpc/grpc-js@1.13.5 |
| 📦npm | @grpc/grpc-js | ≥ 1.14.0&&< 1.14.4 | 1.14.4npm install @grpc/grpc-js@1.14.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @grpc/grpc-js, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update @grpc/grpc-js to 1.9.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-48068 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
A flaw was found in @grpc/grpc-js. An invalid incoming HTTP/2 stream initiation can cause a server process to crash. This affects all servers created using @grpc/grpc-js. There is no workaround.
Upgrade to @grpc/grpc-js 1.9.16, 1.10.12, 1.11.4, 1.12.7, 1.13.5, or 1.14.4. There is no workaround for this vulnerability.Source: Red Hat security advisory for CVE-2026-48068 (CC BY 4.0)
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Enterprise Linux 10 | rh-podman-desktop-0:1.1.2-1.el10_2 | RHSA-2026:57590 |
| Red Hat Ansible Automation Platform 2.1 | ansible-automation-platform/automation-portal:1785854226 | RHSA-2026:50850 |
| Red Hat Ansible Automation Platform 2.2 | ansible-automation-platform/automation-portal:1785857303 | RHSA-2026:50839 |
| Red Hat Ansible Automation Platform 2.2 | ansible-automation-platform/bootc-automation-portal-rhel9:1786006573 | RHSA-2026:51162 |
| Red Hat Developer Hub 1.10 | rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend:1785332487 | RHSA-2026:48126 |
| Red Hat Developer Hub 1.10 | rhdh/rhdh-hub-rhel9:1785411652 | RHSA-2026:49642 |
| Red Hat Developer Hub 1.9 | rhdh/rhdh-hub-rhel9:1785972843 | RHSA-2026:52768 |
| Red Hat OpenShift Dev Spaces 3.30 | devspaces/code-rhel9:1787762793 | RHSA-2026:62260 |
Frequently Asked Questions
Is CVE-2026-48068 in your dependencies?
Find it across npm, including transitive dependencies.