5.3

CVE-2026-44294: protobufjs_project protobufjs Improper Input Validation

CVSS: 5.3v3.1MediumAnalyzed
AliasesCGA-48wc-6cf6-mfqvCGA-6qrr-fg9r-25j5CGA-88r2-vpc9-r66v
Published 13-05-2026Last modified 13-05-2026
Open JSON

Vulnerability summary

CVE-2026-44294 is a medium (CVSS 5.3) Improper Input Validation vulnerability in protobufjs_project protobufjs. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 33% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.40%
0%100%
Low · -0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-WP22-VW69-R94G

Timeline

  1. 13-05-2026
    PublishedVulnerability first disclosed.
  2. 13-05-2026
    Last modifiedVulnerability information updated.

Description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript property accessors from schema-controlled field and oneof names. Certain control characters in field names were not escaped before being embedded into generated function bodies. A crafted schema or JSON descriptor could therefore cause generated encode, decode, verify, or conversion functions to fail during compilation. This vulnerability is fixed in 7.5.6 and 8.0.2.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

-0.03 pp

From 0.43% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.40%

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

Chainguard25 products
  • cadence-web< 4.0.15-r2
  • gemini-cli< 0.44.0-r0
  • homepage< 1.13.1-r3
  • kibana-8.19< 8.19.15-r0
  • kibana-8.19-bitnami< 8.19.15-r0
Wolfi4 products
  • kubeflow-centraldashboard< 1.10.0-r21
  • pulumi-language-nodejs< 3.237.0-r1
  • renovate< 43.170.15-r2
  • vitess-23< 23.0.4-r5
Npm1 product
  • protobufjs< 7.5.6 | ≥ 8.0.0, < 8.0.2
Protobufjs1 product
Protobufjs_project1 product

5 vendors · 32 products

References

6 links