CVE-2026-28753
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
NGINX ngx_mail_proxy_module vulnerability
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
NGINX Open Source
- Vendor
- F5
- Product
- NGINX Open Source
- Platforms
- Unknown
- Default status
unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1.29.0 | affected | semver | 1.29.7 | Unavailable | None listed |
| 0.6.27 | affected | semver | 1.28.3 | Unavailable | None listed |
NGINX Plus
- Vendor
- F5
- Product
- NGINX Plus
- Platforms
- Unknown
- Default status
unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| R36 | affected | custom | R36 P3 | Unavailable | None listed |
| R35 | affected | custom | R35 P2 | Unavailable | None listed |
| R34 | affected | custom | * | Unavailable | None listed |
| R33 | affected | custom | * | Unavailable | None listed |
| R32 | affected | custom | R32 P5 | Unavailable | None listed |