Is symfony/http-kernel 5.4 vulnerable?
Composer · 55 releases from 5.4.0 to 5.4.55 · latest symfony/http-kernel is 8.1.10 · checked 2 Nov 2026
No known advisories in the last release
symfony/http-kernel 5.4.55, the last 5.4 release, has no known advisories. 1 advisory affects earlier 5.4.x releases, so update to 5.4.55.
Update within 5.4:
composer require symfony/http-kernel:^5.4.55Fixed within 5.4.x, affecting earlier releases
Symfony storing cookie headers in HttpCache
- Affected
- >=2.0.0 <4.4.50 · >=5.0.0 <5.4.20 · >=6.0.0 <6.0.20 · >=6.1.0 <6.1.12 · >=6.2.0 <6.2.6
- Fixed in
- 4.4.50, 5.4.20, 6.0.20, 6.1.12, 6.2.6
Which of your client projects are still on symfony/http-kernel 5.4?
NPMscan reads the lockfiles in every GitHub repo you pick, finds the exact symfony/http-kernel version each one installs, and checks it against these advisories. Each finding comes with the command that fixes it.
Other symfony/http-kernel versions
- symfony/http-kernel 6.2
- symfony/http-kernel 6.1
- symfony/http-kernel 6.0
- symfony/http-kernel 5.3
- symfony/http-kernel 5.2
- symfony/http-kernel 5.1
- symfony/http-kernel 8.1
- symfony/http-kernel 8.0
- symfony/http-kernel 7.4
- symfony/http-kernel 7.3
- symfony/http-kernel 7.2
- symfony/http-kernel 7.1
- All symfony/http-kernel 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.