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Fencer Vulns
high 7.4

CVE-2026-101916 json

@grpc/grpc-js: In certain configurations, getAuthContext can return unauthorized certificates as though they were authorized

published 2026-09-28 41 d ago modified 2026-10-01 38 d ago also EUVD-2026-88476 , GHSA-m9gg-hp2v-232j

cvss
7.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.6 and 1.14.5, getAuthContext does not distinguish authorized from unauthorized peer certificates when server credentials set requireClientCertificate to false. When applications use the returned authentication context, they can treat an unauthorized certificate as authorized, causing improper authentication. @grpc/grpc-js-xds can reach this condition when RBAC authentication is enabled in affected configurations. This issue is fixed in version 1.14.5 and 1.13.6.

Patch / fix

  • npm @grpc/grpc-js 1.13.6, 1.14.5
  • grpc grpc 1.13.6, 1.14.5

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-101916 updated cvss 7.4

grpc-js: grpc-js: Authentication bypass via improper peer certificate validation

  • Red Hat Build of Podman Desktop rh-podman-desktop
    affected: no fix available
  • Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-rocm-rhel9, rhelai3/bootc-gaudi-rhel9, rhelai3/disk-image-cuda-rhel9
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat Ansible Automation Platform 2.1 ansible-automation-platform/automation-portal 1791295379
    fixed: vendor fix RHSA-2026:80603
  • Red Hat Ansible Automation Platform 2.2 ansible-automation-platform/automation-portal 1791293780, ansible-automation-platform/bootc-automation-portal-rhel9 1793772689
    fixed: vendor fix RHSA-2026:80644
  • Red Hat Developer Hub 1.10 rhdh/rhdh-hub-rhel9 1792593817
    fixed: vendor fix RHSA-2026:88198
  • Red Hat OpenShift Dev Spaces 3.31 devspaces/code-rhel9 1792599388
    fixed: vendor fix RHSA-2026:90321
  • Red Hat Developer Hub 1.10 rhdh/rhdh-rhel9-operator 1792594036, rhdh/rhdh-operator-bundle 1792597359, rhdh/rhdh-must-gather-rhel9 1792501528, rhdh/rhdh-rag-content-rhel9 1792500854 Red Hat OpenShift Dev Spaces 3.31 devspaces/udi-rhel9 1792708612, devspaces/server-rhel9 1792775639, devspaces/openvsx-rhel9 1792494821, devspaces/traefik-rhel9 1792464177, devspaces/udi-base-rhel9 1792686842, devspaces/code-sshd-rhel9 1792598059, +9 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
38 d ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
GitHub 3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
npm @grpc/grpc-js
<1.13.6
>=1.14.0, <1.14.5
1.13.6
1.14.5

Affected products

  • grpc grpc-node

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.