Out-of-bounds Read Affecting nginx package, versions [1.0.0,1.30.3)[1.31.0,1.31.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-NGINX-17660903
- published28 Jun 2026
- disclosed17 Jun 2026
- creditUnknown
Introduced: 17 Jun 2026
CVE-2026-48142 (opens in a new tab)How to fix?
Upgrade nginx to version 1.30.3, 1.31.1 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the ngx_http_charset_module process when both source_charset is set to utf-8 and a different charset directive is configured in a location block. An attacker can cause a heap buffer over-read by sending crafted requests, potentially resulting in limited memory disclosure or a worker process restart. This is only exploitable if both directives are present with conflicting values in the same location block.