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CVE-2026-42946 affects NGINX's ngx_http_scgi_module and ngx_http_uwsgi_module when scgi_pass or uwsgi_pass is configured. Attacker-controlled upstream responses may trigger excessive memory allocation or a data over-read. An unauthenticated attacker with man-in-the-middle control over upstream server responses may be able to disclose NGINX worker-process memory or cause a worker restart. Affected upstream version ranges are currently not available; versions that have reached End of Technical Support were not evaluated.
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No valid public exploits. Mallory filtered out 3 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
36 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability published on May 13, 2026. The supplied CVSS vectors describe network-based exploitation without authentication or user interaction, with confidentiality and availability impacts but no integrity impact. The excerpt does not identify the affected product or underlying flaw. A patch was published on May 14, 2026.
A network-accessible vulnerability with no required privileges or user interaction, rated Important by the referenced AlmaLinux 9.6 security-check plugin. The supplied CVSS v3 vector indicates high confidentiality and availability impact, while the CVSS v4 vector indicates high confidentiality impact and low availability impact.
An Important-severity network-accessible vulnerability in the TuxCare Rocky Linux 9.6 advisory. The supplied CVSS v3 vector indicates no privileges or user interaction are required, high confidentiality and availability impact, and high attack complexity.
A network-accessible vulnerability rated Important in a CentOS 8.5 TuxCare security advisory. The provided CVSS v3 vector indicates high confidentiality and availability impact with no privileges or user interaction required, but high attack complexity.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.