GHSA-6r35-46g8-jcw9Published

protobufjs-cli: Code injection in pbjs static output from crafted schema names

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cve-program · CVE-2026-44295

Published

protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.2.1 and 2.0.2, pbjs static code generation could emit unsafe JavaScript identifiers derived from schema-controlled names. When generating static JavaScript from a crafted schema or JSON descriptor, certain namespace, enum, service, or derived full names could be written into the generated output without sufficient sanitization. This vulnerability is fixed in 1.2.1 and 2.0.2.

Source published: 13 May 2026 14:50:39 UTC
Source modified: 13 May 2026 18:20:05 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

euvd · EUVD-2026-30033

Published

Additional publisher context

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

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datePublished: May 13, 2026, 2:50:39 PM

dateUpdated: May 13, 2026, 6:20:05 PM

Source published: May 13, 2026, 2:50:39 PM (timezone not stated)
Source modified: May 13, 2026, 6:20:05 PM (timezone not stated)
Saved here: 13 Nov 2026 12:59:59 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

EUVD CVSS 3.1 · 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

nvd · CVE-2026-44295

Published

Additional publisher context

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-94

Original publisher date fields

published: 2026-05-13T16:16:56.507

lastModified: 2026-11-11T20:10:00.273

1 source CPE criteria · context only

cpe:2.3:a:protobufjs_project:protobufjs-cli:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 13 May 2026 16:16:56 UTC
Source modified: 11 Nov 2026 20:10:00 UTC
Saved here: 12 Nov 2026 18:19:07 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · [email protected] · Secondary · 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CVSS 3.1 · [email protected] · Primary · 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

osv · GHSA-6r35-46g8-jcw9

Published

## Summary `pbjs` static code generation could emit unsafe JavaScript identifiers derived from schema-controlled names. When generating static JavaScript from a crafted schema or JSON descriptor, certain namespace, enum, service, or derived full names could be written into the generated output without sufficient sanitization. ## Impact An attacker who can provide or influence schemas passed to `pbjs` may be able to cause generated JavaScript output to contain attacker-controlled code. The injected code would run if the generated file is later executed or imported by the application or build process. This affects the protobufjs CLI static code generation path. Applications that only use trusted schemas, or that do not execute generated output from untrusted schemas, are not directly affected. ## Preconditions - The application or build process must run `pbjs` static code generation on a schema or JSON descriptor influenced by an attacker. - The attacker-controlled input must contain crafted schema names that reach generated JavaScript output. - The generated JavaScript file must subsequently be executed, imported, or otherwise evaluated. ## Workarounds Do not run affected versions of `pbjs` static code generation on untrusted schemas or descriptors. If untrusted schemas must be accepted, validate schema names before code generation and run generation in an isolated environment.

Source published: 12 May 2026 15:06:22 UTC
Source modified: 10 Sep 2026 03:50:45 UTC
Saved here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Publisher rating · HIGH