7.8

CVE-2026-42290: protobufjs_project protobufjs-cli OS Command Injection

CVSS: 7.8v3.1HighAnalyzed
AliasesCGA-82h9-7xqm-337fCGA-w3gg-66qg-39p2GHSA-f84p-cvgm-xgjj
Published 13-05-2026Last modified 18-05-2026
Open JSON

Vulnerability summary

CVE-2026-42290 is a high (CVSS 7.8) OS Command Injection vulnerability in protobufjs_project protobufjs-cli. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.5% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.19%
0%100%
Low · +0.06 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-VFC5-249V-J9VX

Timeline

  1. 13-05-2026
    PublishedVulnerability first disclosed.
  2. 18-05-2026
    Last modifiedVulnerability information updated.

Description

protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.2.1 and 2.0.2, pbts invoked JSDoc by building a shell command string from input file paths and executing it through child_process.exec. File paths containing shell metacharacters could therefore be interpreted by the shell instead of being passed to JSDoc as plain arguments. This vulnerability is fixed in 1.2.1 and 2.0.2.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

+0.06 pp

From 0.13% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.19%

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

Chainguard2 products
  • vitess-22All versions (No fix recorded)
  • vitess-23< 23.0.4-r5
Npm1 product
  • protobufjs-cli< 1.2.1 | ≥ 2.0.0, < 2.0.2
Protobufjs1 product
Protobufjs_project1 product
Wolfi1 product
  • vitess-23< 23.0.4-r5

5 vendors · 6 products

References

6 links