7.4

CVE-2026-101916: grpc grpc-node Improper Certificate Validation

CVSS: 7.4v3.1HighDeferred
AliasesCGA-33fr-v6q6-x4xmCGA-8c58-jxxf-rm4rCGA-gx4x-5r2m-24x7
Published 28-09-2026Last modified 01-10-2026
Open JSON

Vulnerability summary

CVE-2026-101916 is a high (CVSS 7.4) Improper Certificate Validation vulnerability in grpc grpc-node. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.21%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-09-2026
    PublishedVulnerability first disclosed.
  2. 01-10-2026
    Last modifiedVulnerability information updated.

Description

@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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

29-09-202620-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard14 products
  • azurite< 3.37.0-r3
  • cadence-web< 4.0.17-r1
  • dotstatsuite-supercore< 3.1.0_git20261001-r2
  • homepage< 2.4.0-r1
  • kibana-8.19< 8.19.22-r5
Wolfi3 products
  • langfuse-3< 3.225.11-r4
  • langfuse-3-worker< 3.225.11-r4 | < 3.225.11-r3
  • pulumi-language-nodejs< 3.268.0-r0
@grpc1 product
  • grpc-js< 1.13.6 | ≥ 1.14.0, < 1.14.5
Grpc1 product

4 vendors · 19 products

References

7 links