CVE-2026-97629

Medium

Description

Description When NGINX Plus or NGINX Open Source is configured with ssl_session_cache shared:name:size without an explicit ssl_session_ticket_key file directives to automatically rotate SSL session ticket keys, a remote unauthenticated attacker is able to forge client SSL sessions in a non-deterministic manner that is beyond the attacker's control. An attacker could leverage this vulnerability to bypass verification of client certificates. Impact This vulnerability can lead to the exposure of resources or functionality to unintended actors, possibly providing attackers with access to sensitive information. 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.

SeverityMedium
CVSS6.5
Exploit probability—
ProductMicrosoft Azl3 Nginx
PublishedOct 14, 2026
First seenOct 14, 2026
Weakness typeCWE-908CWE-908

How to fix

Affected products

ProductAffected versionsFixed in
microsoft azl3_nginx_1.30.4-1No range specified—

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