Spring Framework sameSite Attribute Dropped in JettyCoreServerHttpResponse
Published Aug 27, 2026
7.5
HIGHCVSS 3.1
EPSS 0.43%
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
-
- Version 6.2.0StatusaffectedConstraints<=6.2.19
- Version 7.0.0StatusaffectedConstraints<=7.0.8
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spring | Spring Framework | unaffected |
|
- ≥ 6.2.0 · < 6.2.20
- ≥ 7.0.0 · < 7.0.8.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Aug 27, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Aug–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.43% (0.00428) | 34.75th | v5 (v2026.06.15) |
| Aug 27, 2026 | 0.14% (0.00144) | 3.98th | v5 (v2026.06.15) |
References (1)
- https://spring.io/security/cve-2026-47889 Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://spring.io/security/cve-2026-47889 | Vendor Advisory |
Change history (0)
No recorded changes yet.