Out-of-bounds Read Affecting nginx package, versions <1.22.1-9+deb12u7


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.73% (51st percentile)

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  • Snyk IDSNYK-ECHOLATEST-NGINX-18011611
  • published18 Jul 2026
  • disclosed13 May 2026

Introduced: 13 May 2026

CVE-2026-42934  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Echo:latest nginx to version 1.22.1-9+deb12u7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nginx package and not the nginx package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When charset, source_charset, and charset_map and proxy_pass with disabled buffering ("off") directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' control to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart.

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

CVSS Base Scores

version 3.1