CVE•Published 2026-05-13•Modified 2026-05-13•0 articles on news•5 live references•NVD data

CVE-2026-45740Protobufjs_project · Protobufjs

Vulnerability data via NVD (ingested)

CVSS v3.1

5.3

MEDIUM

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

EPSS percentile

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Weaknesses (CWE)

CWE-674Uncontrolled Recursion

Description

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.

Timeline

Published 2026-05-13

Modified 2026-05-13

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-45740

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Protobufjs Project Protobufjs"

All exposed Protobufjs Project Protobufjs instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Protobufjs"

HTTP body or banner mentions "Protobufjs" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-45740