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CVE-2026-45740

protobufjs: Denial of Service via unbounded recursive JSON descriptor expansion

CVSS 3.1 5.3 MEDIUMEUVD CVSS 3.1 5.3 CVSS 3.1 · [email protected] · Secondary 5.3 MEDIUMCVSS 3.1 · [email protected] · Primary 7.5 HIGHCVSS_V3 Publisher rating MODERATEFixed by protobufjs 7.5.8Fixed by protobufjs 8.2.0KEV status unknown
Original advisory

cve-program · CVE-2026-45740

Published

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.8 and 8.2.0, protobufjs could recurse without a depth limit while expanding nested JSON descriptors through Root.fromJSON() and Namespace.addJSON(). A crafted JSON descriptor with deeply nested namespace definitions could cause the JavaScript call stack to be exhausted during descriptor loading. This vulnerability is fixed in 7.5.8 and 8.2.0.

Read the publisher's advisory

euvd · EUVD-2026-30039

Published

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.8 and 8.2.0, protobufjs could recurse without a depth limit while expanding nested JSON descriptors through Root.fromJSON() and Namespace.addJSON(). A crafted JSON descriptor with deeply nested namespace definitions could cause the JavaScript call stack to be exhausted during descriptor loading. This vulnerability is fixed in 7.5.8 and 8.2.0.

Read the publisher's advisory

nvd · CVE-2026-45740

Published

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.8 and 8.2.0, protobufjs could recurse without a depth limit while expanding nested JSON descriptors through Root.fromJSON() and Namespace.addJSON(). A crafted JSON descriptor with deeply nested namespace definitions could cause the JavaScript call stack to be exhausted during descriptor loading. This vulnerability is fixed in 7.5.8 and 8.2.0.

Read the publisher's advisory

osv · GHSA-jggg-4jg4-v7c6

Published

## Summary protobufjs could recurse without a depth limit while expanding nested JSON descriptors through `Root.fromJSON()` and `Namespace.addJSON()`. A crafted JSON descriptor with deeply nested namespace definitions could cause the JavaScript call stack to be exhausted during descriptor loading. ## Impact An attacker who can provide JSON descriptors loaded by an application may be able to crash the process or otherwise cause schema loading to fail with a stack overflow. This affects applications that load JSON descriptors from untrusted sources with affected versions. ## Preconditions - The application must load JSON descriptor data influenced by an attacker. - The crafted descriptor must contain deeply nested `nested` namespace objects. - The affected `Root.fromJSON()` / `Namespace.addJSON()` descriptor expansion path must process the crafted input. ## Workarounds Avoid loading untrusted protobuf JSON descriptors with affected versions. If immediate upgrade is not possible, reject excessively nested descriptor structures at an outer validation boundary where feasible, or isolate descriptor loading in a process that can be safely restarted.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-45740

Published

protobuf.js

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "protobufjs",
                    "product": "protobuf.js",
                    "versions": [
                        {
                            "version": "< 7.5.8",
                            "status": "affected"
                        },
                        {
                            "version": ">= 8.0.0, < 8.2.0",
                            "status": "affected"
                        }
                    ]
                }

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

euvd · EUVD-2026-30039

Published

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.

Original publisher date fields

datePublished: May 13, 2026, 2:46:02 PM

dateUpdated: May 13, 2026, 6:20:12 PM

9 related source bulletins · separate from aliases

RHSA-2026:41929: Red Hat Security Advisory: Red Hat Developer Hub 1.9.7 release.

CVE-2026-6734 · CVE-2026-9697 · CVE-2026-12143 · CVE-2026-12151 · CVE-2026-13676 · CVE-2026-42504 · CVE-2026-44902 · CVE-2026-45740

WID-SEC-W-2026-2452: Red Hat Ansible Automation Platform (node-tar, linkify-it, protobufjs, brace-expansion, fast-uri, DOMPurify): Mehrere Schwachstellen

CVE-2026-59873 · CVE-2026-59874 · CVE-2026-48801 · CVE-2026-44289 · CVE-2026-44290 · CVE-2026-44291 · CVE-2026-44292 · CVE-2026-45740 · CVE-2026-13149 · CVE-2026-13676 · CVE-2026-49978

RHSA-2026:51162: Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.2 security update

CVE-2026-13149 · CVE-2026-44902 · CVE-2026-45740 · CVE-2026-48068 · CVE-2026-48801 · CVE-2026-59873 · CVE-2026-59877

RHSA-2026:42815: Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.2 security update

CVE-2026-13149 · CVE-2026-13676 · CVE-2026-44289 · CVE-2026-44290 · CVE-2026-44291 · CVE-2026-44292 · CVE-2026-45740 · CVE-2026-48801 · CVE-2026-49978 · CVE-2026-59873 · CVE-2026-59874

RHSA-2026:48126: Red Hat Security Advisory: Red Hat Developer Hub 1.10.3 Plugin Catalog GA plugins release.

CVE-2026-5038 · CVE-2026-5079 · CVE-2026-13149 · CVE-2026-13676 · CVE-2026-45740 · CVE-2026-46625 · CVE-2026-48068 · CVE-2026-48069 · CVE-2026-48801 · CVE-2026-49978 · CVE-2026-59869 · CVE-2026-59877

RHSA-2026:49642: Red Hat Security Advisory: Red Hat Developer Hub 1.10.3 release.

CVE-2026-5038 · CVE-2026-5079 · CVE-2026-13149 · CVE-2026-13676 · CVE-2026-42504 · CVE-2026-45740 · CVE-2026-46625 · CVE-2026-48068 · CVE-2026-48069 · CVE-2026-48801 · CVE-2026-49978 · CVE-2026-59869 · CVE-2026-59877 · CVE-2026-59892

RHSA-2026:57590: Red Hat Security Advisory: rh-podman-desktop security, bug fix, and enhancement update

CVE-2026-9595 · CVE-2026-12143 · CVE-2026-13149 · CVE-2026-13676 · CVE-2026-14257 · CVE-2026-34986 · CVE-2026-42338 · CVE-2026-42570 · CVE-2026-44705 · CVE-2026-45623 · CVE-2026-45736 · CVE-2026-45740 · CVE-2026-48068 · CVE-2026-48779 · CVE-2026-48801 · CVE-2026-49978 · CVE-2026-56876 · CVE-2026-59869 · CVE-2026-59873 · CVE-2026-59874 · CVE-2026-59877 · CVE-2026-69152 · CVE-2026-69153 · CVE-2026-69192

RHSA-2026:60520: Red Hat Security Advisory: RHOAI 3.4.4 - Red Hat OpenShift AI

CVE-2025-66471 · CVE-2025-66626 · CVE-2025-71329 · CVE-2025-71330 · CVE-2026-0545 · CVE-2026-2614 · CVE-2026-5241 · CVE-2026-5422 · CVE-2026-6322 · CVE-2026-6734 · CVE-2026-8643 · CVE-2026-9697 · CVE-2026-12143 · CVE-2026-12151 · CVE-2026-12243 · CVE-2026-12481 · CVE-2026-13149 · CVE-2026-13311 · CVE-2026-13676 · CVE-2026-13717 · CVE-2026-14450 · CVE-2026-15154 · CVE-2026-15218 · CVE-2026-15378 · CVE-2026-15467 · CVE-2026-15581 · CVE-2026-16745 · CVE-2026-18608 · CVE-2026-18611 · CVE-2026-18617 · CVE-2026-18620 · CVE-2026-18621 · CVE-2026-18948 · CVE-2026-18951 · CVE-2026-18982 · CVE-2026-25681 · CVE-2026-27136 · CVE-2026-32280 · CVE-2026-32283 · CVE-2026-33079 · CVE-2026-33245 · CVE-2026-33811 · CVE-2026-33814 · CVE-2026-34993 · CVE-2026-35397 · CVE-2026-39820 · CVE-2026-39821 · CVE-2026-39828 · CVE-2026-39829 · CVE-2026-39830 · CVE-2026-39831 · CVE-2026-39835 · CVE-2026-40171 · CVE-2026-41672 · CVE-2026-41673 · CVE-2026-41675 · CVE-2026-42211 · CVE-2026-42215 · CVE-2026-42264 · CVE-2026-42266 · CVE-2026-42284 · CVE-2026-42305 · CVE-2026-42311 · CVE-2026-42338 · CVE-2026-42342 · CVE-2026-42499 · CVE-2026-42502 · CVE-2026-42508 · CVE-2026-42557 · CVE-2026-44017 · CVE-2026-44018 · CVE-2026-44020 · CVE-2026-44240 · CVE-2026-44244 · CVE-2026-44289 · CVE-2026-44290 · CVE-2026-44291 · CVE-2026-44292 · CVE-2026-44293 · CVE-2026-44486 · CVE-2026-44487 · CVE-2026-44488 · CVE-2026-44492 · CVE-2026-44494 · CVE-2026-44495 · CVE-2026-44496 · CVE-2026-44513 · CVE-2026-44660 · CVE-2026-44705 · CVE-2026-44724 · CVE-2026-44727 · CVE-2026-44827 · CVE-2026-44843 · CVE-2026-45292 · CVE-2026-45623 · CVE-2026-45736 · CVE-2026-45740 · CVE-2026-45804 · CVE-2026-46595 · CVE-2026-46597 · CVE-2026-46625 · CVE-2026-47214 · CVE-2026-48526 · CVE-2026-48710 · CVE-2026-48712 · CVE-2026-48779 · CVE-2026-48801 · CVE-2026-49476 · CVE-2026-49477 · CVE-2026-49851 · CVE-2026-49978 · CVE-2026-50193 · CVE-2026-53550 · CVE-2026-54058 · CVE-2026-54060 · CVE-2026-54283 · CVE-2026-54293 · CVE-2026-55379 · CVE-2026-55380 · CVE-2026-55685 · CVE-2026-56121 · CVE-2026-56208 · CVE-2026-56209 · CVE-2026-56210 · CVE-2026-56211 · CVE-2026-58049 · CVE-2026-59197 · CVE-2026-59199 · CVE-2026-59200 · CVE-2026-59204 · CVE-2026-59205 · CVE-2026-59869 · CVE-2026-59873 · CVE-2026-59874 · CVE-2026-59884 · CVE-2026-59885 · CVE-2026-59886 · CVE-2026-64835 · CVE-2026-64849 · CVE-2026-69152 · CVE-2026-69192 · CVE-2026-69243 · CVE-2026-69244

RHSA-2026:48151: Red Hat Security Advisory: Red Hat build of Cryostat security update

CVE-2026-6734 · CVE-2026-6860 · CVE-2026-9697 · CVE-2026-12143 · CVE-2026-12151 · CVE-2026-13149 · CVE-2026-25681 · CVE-2026-27136 · CVE-2026-33811 · CVE-2026-39828 · CVE-2026-39829 · CVE-2026-39830 · CVE-2026-39835 · CVE-2026-42504 · CVE-2026-44249 · CVE-2026-44290 · CVE-2026-44291 · CVE-2026-44292 · CVE-2026-44893 · CVE-2026-45416 · CVE-2026-45674 · CVE-2026-45736 · CVE-2026-45740 · CVE-2026-46384 · CVE-2026-46385 · CVE-2026-46595 · CVE-2026-46599 · CVE-2026-46625 · CVE-2026-47691 · CVE-2026-48043 · CVE-2026-48059 · CVE-2026-48779 · CVE-2026-50010 · CVE-2026-50559 · CVE-2026-54512 · CVE-2026-54513

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

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

nvd · CVE-2026-45740

Published

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-674

Original publisher date fields

published: 2026-05-13T16:17:00.520

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

1 source CPE criteria · context only
  • cpe:2.3:a:protobufjs_project:protobufjs:*:*:*:*:*:node.js:*:*

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

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

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

osv · GHSA-jggg-4jg4-v7c6

Published

protobufjs

npm

SEMVER · introduced 0 → fixed 7.5.8

protobufjs

npm

SEMVER · introduced 8.0.0 → fixed 8.2.0

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

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