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openSUSE NGINX Important Heap Overflow DoS Vuln 2026-2370-1

suse
Calendar Grey June 11, 2026
Dist Suse Esm H88
Update for nginx addresses multiple vulnerabilities, ensuring security for SUSE and openSUSE users. Critical patch available.
An update that solves seven vulnerabilities can now be installed.

Summary

## This update for nginx fixes the following issues * CVE-2026-9256: heap buffer overflow in the `ngx_http_rewrite_module` when using a configuration with overlapping captures (bsc#1266215). * CVE-2026-27651: denial of service via undisclosed requests when the `ngx_mail_auth_http_module` is enabled (bsc#1260415). * CVE-2026-32647: NGINX worker memory over-read or over-write via a specially crafted MP4 file (bsc#1260420). * CVE-2026-40701: heap use-after-free in the worker process when the `ssl_verify_client` and the `ssl_ocsp` directives are set due to issue in the `ngx_http_ssl_module` module (bsc#1265229). * CVE-2026-42934: heap buffer overread in the worker process due to issue in the `ngx_http_charset_module` module (bsc#1265231).

References

* bsc#1260415

* bsc#1260420

* bsc#1265229

* bsc#1265231

* bsc#1265232

* bsc#1265233

* bsc#1266215

Cross-

* CVE-2026-27651

* CVE-2026-32647

* CVE-2026-40701

* CVE-2026-42934

* CVE-2026-42945

* CVE-2026-42946

* CVE-2026-9256

CVSS scores:

* CVE-2026-27651 ( SUSE ): 8.2

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-27651 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-27651 ( NVD ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-27651 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-32647 ( SUSE ): 7.3

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2370-1
Release Date: 2026-06-11T13:23:43Z
Rating: important

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