BIT-nginx-2026-56434

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/nginx/BIT-nginx-2026-56434.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-nginx-2026-56434
Aliases
Published
2026-07-20T20:45:44.211Z
Modified
2026-08-19T09:45:24.579828825Z
Summary
NGINX ngx_http_ssi_module vulnerability
Details

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpssimodule module. This vulnerability may exist when the Server-Side Includes (SSI), proxypass, and proxy_buffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to cause a use-after-free in the NGINX worker process. This issue may lead to limited modification of memory or a restart of the NGINX worker process.

Impact: This vulnerability may allow remote attackers to have limited control to modify memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Database specific
{
    "severity": "High",
    "cpes": [
        "cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*"
    ]
}
References

Affected packages

Bitnami / nginx

Package

Name
nginx
Purl
pkg:bitnami/nginx

Severity

  • 8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0.8.11
Fixed
1.30.4
Introduced
1.31.0
Fixed
1.31.3

Database specific

source
"https://github.com/bitnami/vulndb/tree/main/data/nginx/BIT-nginx-2026-56434.json"