SUSE nginx Important Memory Overread Buffer Overflow Vuln 2026-1761-1
suse
May 8, 2026
An update that solves four vulnerabilities can now be installed.
Summary
## This update for nginx fixes the following issues: * CVE-2026-1642: plain text data injection into the response from an upstream proxied server via MITM attack (bsc#1257675). * CVE-2026-27654: buffer overflow in the NGINX worker process via the `ngx_http_dav_module` module (bsc#1260416). * CVE-2026-27784: NGINX worker memory overread or overwrite via a specially crafted MP4 file (bsc#1260417). * CVE-2026-28753: arbitrary header injection into SMTP upstream requests via attacker-controlled DNS server (bsc#1260418). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * openSUSE Leap 15.6 zypper in -t patch SUSE-2026-1761=1
Topics Covered
References
* bsc#1257675
* bsc#1260416
* bsc#1260417
* bsc#1260418
Cross-
* CVE-2026-1642
* CVE-2026-27654
* CVE-2026-27784
* CVE-2026-28753
CVSS scores:
* CVE-2026-1642 ( SUSE ): 8.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-1642 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
* CVE-2026-1642 ( NVD ): 8.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/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-2026-1642 ( NVD ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
* CVE-2026-27654 ( SUSE ): 8.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
* CVE-2026-27654 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
PREVIOUS
NEXT
Severity
important
Lowest
Low
Medium
High
Critical
Announcement ID: SUSE-SU-2026:1761-1
Release Date: 2026-05-08T08:58:17Z
Rating: important
Topics Covered
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Related News
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!