Vulnerability · Published Aug 27, 2026 · Assigned by vmware
CVE-2026-59298Potential for improper filtering of HTTP headers in Spring Cloud Function
Low 3.1
In plain English
A low-severity improper input validation in Spring Cloud Function from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.2%top 86.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Potential for improper filtering of HTTP headers 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 Spring Cloud Function 3.2.16 and earlier
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Cloud Function | 5.0.0 – through 5.0.34.3.0 – through 4.3.44.2.0 – through 4.2.70 – through 3.2.16 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N