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7.5 High

CVE-2026-27651 When the ngx_mail_auth_http_module module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can…

Description

When the ngx_mail_auth_http_module module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue may occur when (1) CRAM-MD5 or APOP authentication is enabled, and (2) the authentication server permits retry by returning the Auth-Wait response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products and versions

Show the 17 other branches
Product Affected versions Fixed in
Red Hat CodeReady Linux Builder EUS (v.9.4) Versions not published
Red Hat CodeReady Linux Builder EUS (v.9.6) Versions not published
Red Hat Hardened Images 1.30 earliest → < 1.30.0-1.hum1 1.30.0-1.hum1
Red Hat Update Infrastructure 5 1776868842 earliest → < 1776868842 1776868842
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) Versions not published
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) Versions not published
NGINX Open Source 1.29 1.29.0 → < 1.29.7 1.29.7
NGINX Open Source 0.5 0.5.15 → < 1.28.3 1.28.3
NGINX Plus Versions not published
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Red Hat Enterprise Linux 8 8100020260401080144.489197 earliest → < 8100020260401080144.489197e6 8100020260401080144.489197e6
Red Hat Enterprise Linux 9 9070020260407080353.9 earliest → < 9070020260407080353.9 9070020260407080353.9
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Extended Update Support 9040020260504195322.9 earliest → < 9040020260504195322.9 9040020260504195322.9
Red Hat Enterprise Linux 9.6 Extended Update Support 9060020260504154614.9 earliest → < 9060020260504154614.9 9060020260504154614.9

References

Timeline

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The 269 CVEs of Red Hat Enterprise Linux AppStream EUS (v. 10.0) →
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