ALPINE-CVE-2026-28753
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-28753
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-28753.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-28753
- Upstream
- Published
- 2026-03-24T15:16:33Z
- Modified
- 2026-09-14T16:18:08Z
- Severity
-
- 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/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 CVSS Calculator
- Summary
- [none]
- Details
-
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_mail_smtp_module module due to the improper handling of CRLF sequences in DNS responses. This allows an attacker-controlled DNS server to inject arbitrary headers into SMTP upstream requests, leading to potential request manipulation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- References
Affected packages
Alpine:v3.22 / nginx
Package
- Name
- nginx
- Purl
- pkg:apk/alpine/nginx?arch=source
Alpine:v3.23 / nginx
Package
- Name
- nginx
- Purl
- pkg:apk/alpine/nginx?arch=source