Spring Framework Server-Side Request Forgery via UriComponentsBuilder

published 2026-06-09 5 mo ago modified 2026-08-06 3 mo ago also GHSA-7m2p-62gw-p8qq , EUVD-2026-35343

cvss: 4.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 2%
public exploits: 0; none known

Due to incorrect host parsing, applications that rely on UriComponentsBuilder to parse and validate an externally provided URL string may be exposed to a server-side request forgery (SSRF) attack.

Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18.

Patch / fix

fixed in 2

maven org.springframework:spring-web 6.2.19, 7.0.8
Spring Spring Framework 6.2.18.1, 7.0.7.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-41854 updated 2026-07-17 cvss 4.2

spring-framework: Spring Framework: Server-Side Request Forgery via incorrect host parsing

Red Hat OpenShift Developer Tools and Services spring-web 6.2.14 Red Hat OpenShift Dev Spaces spring-web 6.2.14
affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 5 mo ago (2026-06-09)

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.2	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
GitHub	3.1	4.2	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	org.springframework:spring-web	>=7.0.0, <7.0.8 >=6.2.0, <6.2.19	7.0.8 6.2.19

Affected products

Spring Spring Framework

Classification

Weakness

CWE-918 Server-Side Request Forgery

Technology feeds

Spring rss critical rss

References

spring.io /security/cve-2026-41854
web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2026-41854
advisory
github.com /spring-projects/spring-framework
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary