Answer in brief
CVE-2026-41853 records a Medium severity (CVSS 5.3) security vulnerability in Spring Framework Multipart Request Smuggling in Spring MVC and WebFlux. The source record does not mark it as known exploited. 8 affected packages are mapped in the feed.
Answer in brief
CVE-2026-41853 records a Medium severity (CVSS 5.3) security vulnerability in Spring Framework Multipart Request Smuggling in Spring MVC and WebFlux. The source record does not mark it as known exploited. 8 affected packages are mapped in the feed.
Update org.springframework:spring-webflux to 7.0.8; org.springframework:spring-webflux to 6.2.19; org.springframework:spring-webmvc to 7.0.8; org.springframework:spring-webmvc to 6.2.19 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanVulnerability describes the vulnerability class recorded for this advisory. The current record does not mark CVE-2026-41853 as known exploited; continue to monitor the source for status changes. The feed includes package mappings that can be checked against lockfiles and deployed manifests.
| Package | Affected range | Fixed version |
|---|---|---|
| org.springframework:spring-webfluxmaven | >=7.0.0,<=7.0.7 | 7.0.8 |
| org.springframework:spring-webfluxmaven | >=6.2.0,<=6.2.18 | 6.2.19 |
| org.springframework:spring-webfluxmaven | >=6.1.0,<=6.1.21 | Not reported |
| org.springframework:spring-webfluxmaven | <=5.3.39 | Not reported |
| org.springframework:spring-webmvcmaven | >=7.0.0,<=7.0.7 | 7.0.8 |
| org.springframework:spring-webmvcmaven | >=6.2.0,<=6.2.18 | 6.2.19 |
| org.springframework:spring-webmvcmaven | >=6.1.0,<=6.1.21 | Not reported |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
CVE-2026-41853 records a Medium severity (CVSS 5.3) security vulnerability in Spring Framework Multipart Request Smuggling in Spring MVC and WebFlux. The source record does not mark it as known exploited. 8 affected packages are mapped in the feed.
The source record does not mark it as known exploited.
Check lockfiles and deployed manifests for org.springframework:spring-webflux, org.springframework:spring-webflux, org.springframework:spring-webflux.
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL GuardUpdate org.springframework:spring-webflux to 7.0.8; org.springframework:spring-webflux to 6.2.19; org.springframework:spring-webmvc to 7.0.8; org.springframework:spring-webmvc to 6.2.19 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanVulnerability describes the vulnerability class recorded for this advisory. The current record does not mark CVE-2026-41853 as known exploited; continue to monitor the source for status changes. The feed includes package mappings that can be checked against lockfiles and deployed manifests.
| Package | Affected range | Fixed version |
|---|---|---|
| org.springframework:spring-webfluxmaven | >=7.0.0,<=7.0.7 | 7.0.8 |
| org.springframework:spring-webfluxmaven | >=6.2.0,<=6.2.18 | 6.2.19 |
| org.springframework:spring-webfluxmaven | >=6.1.0,<=6.1.21 | Not reported |
| org.springframework:spring-webfluxmaven | <=5.3.39 | Not reported |
| org.springframework:spring-webmvcmaven | >=7.0.0,<=7.0.7 | 7.0.8 |
| org.springframework:spring-webmvcmaven | >=6.2.0,<=6.2.18 | 6.2.19 |
| org.springframework:spring-webmvcmaven | >=6.1.0,<=6.1.21 | Not reported |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
CVE-2026-41853 records a Medium severity (CVSS 5.3) security vulnerability in Spring Framework Multipart Request Smuggling in Spring MVC and WebFlux. The source record does not mark it as known exploited. 8 affected packages are mapped in the feed.
The source record does not mark it as known exploited.
Check lockfiles and deployed manifests for org.springframework:spring-webflux, org.springframework:spring-webflux, org.springframework:spring-webflux.
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard| org.springframework:spring-webmvcmaven | <=5.3.39 | Not reported |
|---|
Spring MVC and WebFlux applications are vulnerable to Multipart request smuggling attacks. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
| org.springframework:spring-webmvcmaven | <=5.3.39 | Not reported |
|---|
Spring MVC and WebFlux applications are vulnerable to Multipart request smuggling attacks. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.