Vulnerability-Lookup

FKIE_CVE-2026-41242

Vulnerability from fkie_nvd - Published: 2026-04-18 17:16 - Updated: 2026-09-09 13:19

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

protobufjs compiles protobuf definitions into JavaScript (JS) functions. In versions prior to 8.0.1 and 7.5.5, attackers can inject arbitrary code in the "type" fields of protobuf definitions, which will then execute during object decoding using that definition. Versions 8.0.1 and 7.5.5 patch the issue.

References

URL	Tags
security-advisories@github.com	https://github.com/protobufjs/protobuf.js/commit/535df444ac060243722ac5d672db205e5c531d75	Patch
security-advisories@github.com	https://github.com/protobufjs/protobuf.js/commit/ff7b2afef8754837cc6dc64c864cd111ab477956	Patch
security-advisories@github.com	https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.5.5	Product, Release Notes
security-advisories@github.com	https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v8.0.1	Product, Release Notes
security-advisories@github.com	https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-xq3m-2v4x-88gg	Exploit, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:21338
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:24977
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:26234
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:37275
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:62260
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-41242
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2459442
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41242.json

Impacted products

	Vendor	Product	Version
	protobufjs_project	protobufjs	*
	protobufjs_project	protobufjs	8.0.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "protobuf.js",
          "vendor": "protobufjs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 7.5.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0.0-experimental, \u003c 8.0.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
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CVE-2026-41242 (GCVE-0-2026-41242)

Vulnerability from cvelistv5 – Published: 2026-04-18 16:18 – Updated: 2026-09-09 12:05

Title

protobufjs has an arbitrary code execution issue

Summary

Severity

9.4 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-20 16:03 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7658 records in the last 180 days details

References

13 references

URL	Tags
https://github.com/protobufjs/protobuf.js/securit…	x_refsource_CONFIRM
https://github.com/protobufjs/protobuf.js/commit/…	x_refsource_MISC
https://github.com/protobufjs/protobuf.js/commit/…	x_refsource_MISC
https://github.com/protobufjs/protobuf.js/release…	x_refsource_MISC
https://github.com/protobufjs/protobuf.js/release…	x_refsource_MISC
https://access.redhat.com/security/cve/CVE-2026-41242	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2459442	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:21338	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26234	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24977	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:37275	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:62260	vendor-advisoryx_refsource_REDHAT

Impacted products

23 products

Vendor	Product	Version
protobufjs	protobuf.js	Affected: < 7.5.5 Affected: >= 8.0.0-experimental, < 8.0.1
Red Hat	Red Hat Developer Hub 1.8	Unaffected: 1779841586 , < * (rpm) cpe:/a:redhat:rhdh:1.8::el9
Red Hat	Red Hat Developer Hub 1.9	Unaffected: 1781187342 , < * (rpm) cpe:/a:redhat:rhdh:1.9::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1780467029 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 2.25	Unaffected: 1780467147 , < * (rpm) cpe:/a:redhat:openshift_ai:2.25::el9
Red Hat	Red Hat OpenShift AI 3.3	Unaffected: 1783082680 , < * (rpm) cpe:/a:redhat:openshift_ai:3.3::el9
Red Hat	Red Hat OpenShift Dev Spaces 3.30	Unaffected: 1787762793 , < * (rpm) cpe:/a:redhat:openshift_devspaces:3.30::el9
Red Hat	Cryostat 4	cpe:/a:redhat:cryostat:4
Red Hat	OpenShift Pipelines	cpe:/a:redhat:openshift_pipelines:1
Red Hat	OpenShift Service Mesh 3	cpe:/a:redhat:service_mesh:3
Red Hat	Red Hat Ansible Automation Platform 2	cpe:/a:redhat:ansible_automation_platform:2
Red Hat	Red Hat build of Apicurio Registry 3	cpe:/a:redhat:apicurio_registry:3
Red Hat	Red Hat Build of Podman Desktop	cpe:/a:redhat:podman_desktop:1
Red Hat	Red Hat Ceph Storage 9	cpe:/a:redhat:ceph_storage:9
Red Hat	Red Hat Developer Hub	cpe:/a:redhat:rhdh:1
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux AI (RHEL AI) 3	cpe:/a:redhat:enterprise_linux_ai:3
Red Hat	Red Hat Hardened Images	cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat OpenShift AI (RHOAI)	cpe:/a:redhat:openshift_ai
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4
Red Hat	Red Hat Openshift Data Foundation 4	cpe:/a:redhat:openshift_data_foundation:4
Red Hat	Self-service automation portal 2	cpe:/a:redhat:ansible_portal:2

Show details on NVD website

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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