Medium severity5.3GHSA Advisory· Published May 13, 2026· Updated May 13, 2026
CVE-2026-44292
CVE-2026-44292
Description
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated message constructors copied enumerable properties from a provided properties object without filtering the __proto__ key. If an application constructed a message from an attacker-controlled plain object, an own enumerable __proto__ property could alter the prototype of that individual message instance. This vulnerability is fixed in 7.5.6 and 8.0.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
protobufjsnpm | < 7.5.6 | 7.5.6 |
protobufjsnpm | >= 8.0.0, < 8.0.2 | 8.0.2 |
Affected products
27- Range: >= 8.0.0, <= 8.0.1
- osv-coords26 versionspkg:apk/chainguard/cadence-webpkg:apk/chainguard/gemini-clipkg:apk/chainguard/homepagepkg:apk/chainguard/kibana-8.19pkg:apk/chainguard/kibana-8.19-bitnamipkg:apk/chainguard/kibana-8.19-iamguardedpkg:apk/chainguard/kibana-9.0pkg:apk/chainguard/kibana-9.0-bitnamipkg:apk/chainguard/kibana-9.0-iamguardedpkg:apk/chainguard/kibana-9.1pkg:apk/chainguard/kibana-9.1-iamguardedpkg:apk/chainguard/kibana-9.3pkg:apk/chainguard/kibana-9.3-iamguardedpkg:apk/chainguard/kibana-9.4pkg:apk/chainguard/kibana-9.4-iamguardedpkg:apk/chainguard/kubeflow-centraldashboardpkg:apk/chainguard/librechatpkg:apk/chainguard/opentelemetry-auto-instrumentations-nodepkg:apk/chainguard/pulumi-language-nodejspkg:apk/chainguard/renovatepkg:apk/chainguard/vitess-23pkg:apk/wolfi/kubeflow-centraldashboardpkg:apk/wolfi/pulumi-language-nodejspkg:apk/wolfi/renovatepkg:apk/wolfi/vitess-23pkg:npm/protobufjs
< 4.0.15-r2+ 25 more
- (no CPE)range: < 4.0.15-r2
- (no CPE)range: < 0.44.0-r0
- (no CPE)range: < 1.13.1-r3
- (no CPE)range: < 8.19.15-r0
- (no CPE)range: < 8.19.15-r0
- (no CPE)range: < 8.19.15-r0
- (no CPE)range: < 9.0.8-r29
- (no CPE)range: < 9.0.8-r29
- (no CPE)range: < 9.0.8-r29
- (no CPE)range: < 9.1.10-r18
- (no CPE)range: < 9.1.10-r18
- (no CPE)range: < 9.3.4-r4
- (no CPE)range: < 9.3.4-r4
- (no CPE)range: < 9.4.2-r2
- (no CPE)range: < 9.4.2-r2
- (no CPE)range: < 1.10.0-r21
- (no CPE)range: < 0.8.4-r7
- (no CPE)range: < 0.76.0-r0
- (no CPE)range: < 3.237.0-r1
- (no CPE)range: < 43.170.15-r2
- (no CPE)range: < 23.0.4-r5
- (no CPE)range: < 1.10.0-r21
- (no CPE)range: < 3.237.0-r1
- (no CPE)range: < 43.170.15-r2
- (no CPE)range: < 23.0.4-r5
- (no CPE)range: < 7.5.6
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-fx83-v9x8-x52wghsaADVISORY
- github.com/protobufjs/protobuf.js/security/advisories/GHSA-fx83-v9x8-x52wnvdVendor AdvisoryMitigationWEB
- nvd.nist.gov/vuln/detail/CVE-2026-44292ghsaADVISORY
- github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.5.6ghsaWEB
- github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v8.0.2ghsaWEB
News mentions
1- Six Proto6 Vulnerabilities in protobuf.js Expose Node.js Apps to RCE and DoSThe Hacker News · Jun 10, 2026