Description
CRLF injection vulnerability in Zend\Mail (Zend_Mail) in Zend Framework before 1.12.12, 2.x before 2.3.8, and 2.4.x before 2.4.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via CRLF sequences in the header of an email.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Zend Technologies | Zend Framework | before 1.12.12, 2.x before 2.3.8, 2.4.x before 2.4.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | zendframework | 1.11.13-1.1+deb7u1 | DSA-3265-1 |
| Debian 6.0 | zendframework | 1.10.6-1squeeze3 | DLA-251-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | zend-framework | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | zendframework/zend-http | >= 2.0.0beta4, < 2.3.8 | 2.3.8 | GHSA-5957-5crx-79jx |
| Packagist | zendframework/zend-http | >= 2.4.0rc1, < 2.4.1 | 2.4.1 | GHSA-5957-5crx-79jx |
| Packagist | zendframework/zend-http | < 1.12.12 | 1.12.12 | GHSA-5957-5crx-79jx |
| Packagist | zendframework/zendframework | >= 2.0.0beta4, < 2.3.8 | 2.3.8 | GHSA-5957-5crx-79jx |
| Packagist | zendframework/zendframework | >= 2.4.0rc1, < 2.4.1 | 2.4.1 | GHSA-5957-5crx-79jx |
| Packagist | zendframework/zendframework1 | < 1.12.12 | 1.12.12 | GHSA-5957-5crx-79jx |
Advisories 2
- DSA-3265-1 zendframework - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-251-1 zendframework - security update Debian Security (DSA / DLA) · Mar 9, 2026