CVE-2026-59298: spring spring cloud function Improper Input Validation
CVSS: 3.5v3.1LowAnalyzed
Published 27-08-2026Last modified 01-09-2026
Vulnerability summary
CVE-2026-59298 is a low (CVSS 3.5) Improper Input Validation vulnerability in spring spring cloud function. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.3% of scored vulnerabilities.
CVSS score
3.5/10
010
Low · v3.1 (NVD)EPSS score
0.22%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 27-08-2026PublishedVulnerability first disclosed.
- 01-09-2026Last modifiedVulnerability information updated.
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
CVSS metrics
2 scores · 2 sources · 1 versionLow 3.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:NSources2 sources · 3.1–3.5
- CVE.orgCNA3.1LowCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
+0.06 pp
From 0.16% on 19-09-2026
19-09-202619-10-2026
EPSS score0.22%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Spring1 product
- spring cloud function≥ 5.0.0, ≤ 5.0.3 | ≥ 4.3.0, ≤ 4.3.4 | ≥ 4.2.0, ≤ 4.2.7 | ≤ 3.2.16
Vmware1 product
- spring_cloud_function≥ 3.2.0, < 3.2.17 | ≥ 4.2.0, < 4.2.8 | ≥ 4.3.0, < 4.3.5 | ≥ 5.0.0, < 5.0.4
2 vendors · 2 products