CVE-2026-97629highCWE-908

CVE-2026-97629: high-severity vulnerability in F5 NGINX Plus

NGINX ngx_http_ssl_module vulnerability

Published · Updated

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.3epss 0.2%
from disclosure to weapon7 days
Published on NVDOct 14
1st PoC+7d
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
F5 · NGINX Open SourceF5 · NGINX Plus
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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