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5.9 Medium

CVE-2026-1642 A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS)…

Description

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a man-in-the-middle (MITM) position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response from an upstream proxied server.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products and versions

Product Affected versions Fixed in
NGINX Open Source 1.3 1.3.0 → < 1.29.5 1.29.5
NGINX Plus Versions not published

References

Timeline

  1. Published
  2. Last modified

Other CVEs of NGINX Open Source

The 35 CVEs of NGINX Open Source →
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