CVE•Published 2026-08-05•Modified 2026-08-07•0 articles on news•5 live references•NVD data
CVE-2026-66276Apache · Qpid_proton-j
Vulnerability data via NVD (ingested)
CVSS v3.1
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
7
Exploit Prediction Scoring System · top 93% of all CVEs
Weaknesses (CWE)
Description
An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue.
Timeline
Published 2026-08-05
Modified 2026-08-07
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). Live host counts are a Premium feature.
Shodan · vuln tag
vuln:CVE-2026-66276Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Apache Qpid Proton-j"All exposed Apache Qpid Proton-j instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Qpid Proton-j"HTTP body or banner mentions "Qpid Proton-j" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-66276Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-66276Censys host search filtered to this CVE id.
grep.app
CVE-2026-66276Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-66276GitHub code search for direct mentions.
Google dork
"CVE-2026-66276" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-66276 on GitHub.
We haven't classified any articles referencing CVE-2026-66276 yet. The external references above still apply.