Medium severity · published Aug 27, 2026
CVE-2026-59291
Potential arbitrary file read and SSRF vulnerability in Spring Cloud Function
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
Potential arbitrary file read and SSRF vulnerability in Spring Cloud Function. Spring Cloud Function 5.0.0 - 5.0.3 Spring Cloud Function 4.3.0 - 4.3.4 Spring Cloud Function 4.2.0 - 4.2.7
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
Spring Cloud Function · Spring
5.0.0 through 5.0.3; 4.3.0 through 4.3.4; 4.2.0 through 4.2.7 · source: vendor, NVD
Affected product
SC
Spring Cloud Function
Spring
More from Spring Cloud Function
6.5
CVE-2026-40990
Unbounded cache for function definitions
6.5
CVE-2026-40989
Self Routing guard bypassed via function composition
4.9
CVE-2026-59301
Potential for logging sensitive data in Spring Cloud Function Azure
3.5
CVE-2026-59300
Potential for logging sensitive data in Spring Cloud Function AWS
3.5
CVE-2026-59299
Composition lookup can potentially poison base function in Spring Cloud Function