Bug 2450780 (CVE-2026-28753)
| Summary: | CVE-2026-28753 NGINX: NGINX Plus: NGINX Open Source: NGINX Plus and NGINX Open Source: Request manipulation via header injection in SMTP upstream requests | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | Keywords: | Security |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in NGINX Plus and NGINX Open Source, specifically within the ngx_mail_smtp_module. This vulnerability allows an attacker-controlled DNS (Domain Name System) server to inject arbitrary headers into SMTP (Simple Mail Transfer Protocol) upstream requests. This is due to the improper handling of Carriage Return (CRLF) sequences in DNS responses. The primary consequence is the potential manipulation of these requests, which could alter their intended behavior.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2450842 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-03-24 15:02:06 UTC
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