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Description

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, SendmailTransport in -t mode appended recipient addresses to the sendmail command line without a -- end-of-options separator, allowing an address beginning with - to be interpreted as a sendmail command-line option instead of an address. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.

PUBLISHED Reserved 2026-05-08 | Published 2026-07-14 | Updated 2026-07-14 | Assigner GitHub_M




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

Product status

< 5.4.52
affected

>= 6.0.0-BETA1, < 6.4.40
affected

>= 7.0.0-BETA1, < 7.4.12
affected

>= 8.0.0-BETA1, < 8.0.12
affected

< 5.4.52
affected

>= 6.0.0-BETA1, < 6.4.40
affected

>= 7.0.0-BETA1, < 7.4.12
affected

>= 8.0.0-BETA1, < 8.0.12
affected

References

github.com/...ymfony/security/advisories/GHSA-xx3c-qf5g-hc39

github.com/...ommit/c45144862dc289d03952f41f6078174089a3afc6

github.com/symfony/symfony/releases/tag/v5.4.52

github.com/symfony/symfony/releases/tag/v6.4.40

github.com/symfony/symfony/releases/tag/v7.4.12

github.com/symfony/symfony/releases/tag/v8.0.12

cve.org (CVE-2026-45068)

nvd.nist.gov (CVE-2026-45068)

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