CVE•Published 2026-05-13•Modified 2026-09-09•1 article on news•5 live references•NVD data
CVE-2026-44293Protobufjs_project · Protobufjs
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
34
Exploit Prediction Scoring System · top 66% of all CVEs
Weaknesses (CWE)
Description
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript for toObject conversion could include an unsafe expression derived from a schema-controlled bytes field default value. A crafted descriptor with a non-string default value for a bytes field could cause attacker-controlled code to be emitted into the generated conversion function. This vulnerability is fixed in 7.5.6 and 8.0.2.
Timeline
Published 2026-05-13
Modified 2026-09-09
External references
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-2026-44293Hosts 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-2026-44293Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-44293Censys host search filtered to this CVE id.
grep.app
CVE-2026-44293Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-44293GitHub code search for direct mentions.
Google dork
"CVE-2026-44293" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.