Is swiftmailer/swiftmailer 6.3 vulnerable?
Composer · 1 release from 6.3.0 to 6.3.0 · latest swiftmailer/swiftmailer is 6.3.0 · checked 1 Nov 2026
No known advisories in the last release
No. No swiftmailer/swiftmailer 6.3.x release has a known security advisory.
Which of your client projects are still on swiftmailer/swiftmailer 6.3?
NPMscan reads the lockfiles in every GitHub repo you pick, finds the exact swiftmailer/swiftmailer version each one installs, and checks it against these advisories. Each finding comes with the command that fixes it.
Other swiftmailer/swiftmailer versions
- swiftmailer/swiftmailer 6.2
- swiftmailer/swiftmailer 6.1
- swiftmailer/swiftmailer 6.0
- swiftmailer/swiftmailer 5.4
- swiftmailer/swiftmailer 5.3
- swiftmailer/swiftmailer 5.2
- swiftmailer/swiftmailer 5.1
- swiftmailer/swiftmailer 5.0
- swiftmailer/swiftmailer 4.3
- swiftmailer/swiftmailer 4.2
- swiftmailer/swiftmailer 4.1
- All swiftmailer/swiftmailer advisories
Advisory data from OSV.dev (opens OSV.dev in a new tab), which includes the GitHub Advisory Database. Release list from the Composer registry. Refreshed daily.