Description
A WebFlux application running on the Jetty 12 Core reactive adapter serializes response cookies without the sameSite attribute.
Spring Framework 7.0.0 - 7.0.8
Spring Framework 6.2.0 - 6.2.19
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Spring | Spring Framework | 7.0.0 – ≤ 7.0.8, 6.2.0 – ≤ 6.2.19 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libspring-java | No fix yet | — |
| Ubuntu 26.04 LTS | libspring-java | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | libspring-java | No fix yet | — |
| Ubuntu Pro 22.04 LTS | libspring-java | No fix yet | — |
| Ubuntu Pro 20.04 LTS | libspring-java | No fix yet | — |
| Ubuntu Pro 18.04 LTS | libspring-java | No fix yet | — |
| Ubuntu Pro 16.04 LTS | libspring-java | No fix yet | — |
| Ubuntu Pro 14.04 LTS | libspring-java | No fix yet | — |
Advisories 1
- WID-SEC-2026-2955 VMware Tanzu Spring Framework: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 21, 2026