CVE•Published 2026-08-25•1 article on news•5 live references•NVD data
CVE-2026-79787
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
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Weaknesses (CWE)
Description
Alluxio's S3 REST proxy fails to verify AWS Signature Version 4 signatures in its default configuration, allowing unauthenticated attackers to spoof user identity. Attackers can extract usernames from unsigned Authorization headers and impersonate any user, including service accounts, to read, write, and delete arbitrary data.
Timeline
Published 2026-08-25
Modified 2026-08-25
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-79787Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-79787Censys host search filtered to this CVE id.
grep.app
CVE-2026-79787Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-79787GitHub code search for direct mentions.
Google dork
"CVE-2026-79787" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-79787 on GitHub.