CVE-2026-59303
Dynamic destination cache size is not properly bound in Spring Cloud Stream
Dynamic destination cache size is not properly bound in Spring Cloud Stream. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud Stream 4.2.0 - 4.2.6
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Dynamic destination cache size is not properly bound in Spring Cloud Stream
Dynamic destination cache size is not properly bound in Spring Cloud Stream. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud Stream 4.2.0 - 4.2.6
- Record
CVE-2026-59303- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-770
- Updated
- 2026-11-02
EUVDEUVD-2026-67189
Dynamic destination cache size is not properly bound in Spring Cloud Stream. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud Stream 4.2.0 - 4.2.6
- Record
EUVD-2026-67189- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-6h2m-pr57-ggxv
Dynamic destination cache size is not properly bound in Spring Cloud Stream. Spring Cloud Stream...
Dynamic destination cache size is not properly bound in Spring Cloud Stream. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud Stream 4.2.0 - 4.2.6
- Record
GHSA-6h2m-pr57-ggxv- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-770
- Updated
- 2026-11-02
NVD
Dynamic destination cache size is not properly bound in Spring Cloud Stream. Spring Cloud Stream 5.0.0 - 5.0.2 Spring Cloud Stream 4.3.0 - 4.3.3 Spring Cloud Stream 4.2.0 - 4.2.6
- Record
CVE-2026-59303- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N - CVSS 3.1
- 3.8 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-770
- Updated
- 2026-11-02
OSVCLSA-2026-1793208849 No score
TuxCare security update for org.springframework.cloud:spring-cloud-stream (4 CVEs)
TuxCare rebuilt org.springframework.cloud:spring-cloud-stream to address 4 CVEs. Fixed in 4.3.3-tuxcare.1.
- Record
CLSA-2026-1793208849- Updated
- 2026-11-02
OSVCLSA-2026-1793287710 No score
TuxCare security update for org.springframework.cloud:spring-cloud-stream (4 CVEs)
TuxCare rebuilt org.springframework.cloud:spring-cloud-stream to address 4 CVEs. Fixed in 4.2.3-tuxcare.1.
- Record
CLSA-2026-1793287710- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.springframework.cloud:spring-cloud-streamTuxCare:Maven From an advisory covering 4 CVEs |
4.3.3 up to 4.3.3-tuxcare.1 | 4.3.3-tuxcare.1 |
org.springframework.cloud:spring-cloud-streamTuxCare:Maven From an advisory covering 4 CVEs |
4.2.3 up to 4.2.3-tuxcare.1 | 4.2.3-tuxcare.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-59303 is a low vulnerability (CVSS 3.1) in Spring Cloud Stream, published August 27, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.21%, the 11th percentile. No source names a fixed version.