Data Binding Vulnerability in Spring Web Flow with Unified EL Parser (CVE-2026-40985) | HOL Guard CVE

Medium · CVSS 6.4CVE-2026-40985GHSA-9GGW-87M9-9GFC

Data Binding Vulnerability in Spring Web Flow with Unified EL Parser

Answer in brief

CVE-2026-40985 records a Medium severity (CVSS 6.4) vulnerability in Data Binding Vulnerability in Spring Web Flow with Unified EL Parser. The current sources do not mark it as known exploited. The current feed maps Spring/Spring Web Flow (generic), org.springframework.webflow:spring-webflow (maven), org.springframework.webflow:spring-webflow (maven), org.springframework.webflow:spring-webflow (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 11, 2026Updated Sep 4, 2026Source checked Sep 20, 2026First seen by HOL Jun 23, 2026Material review Sep 4, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.4
Exploitation: Not marked as known exploited
Affected software: 9 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 6.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Spring/Spring Web Flow (generic), org.springframework.webflow:spring-webflow (maven), org.springframework.webflow:spring-webflow (maven), org.springframework.webflow:spring-webflow (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:a:broadcom:spring_web_flow::::::::	Not reported	Not reported
cpe:2.3:a:broadcom:spring_web_flow:4.0.0:::::::*	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Spring/Spring Web Flowgeneric	>=4.0.0 <4.0.0.1 \|\| >=3.0.0 <3.0.1.1 \|\| >=2.5.0 <2.5.2	4.0.0.1, 3.0.1.1, 2.5.2
org.springframework.webflow:spring-webflowmaven	=4.0.0	4.0.1
org.springframework.webflow:spring-webflowmaven	>=3.0.0,<3.0.2	3.0.2
org.springframework.webflow:spring-webflowmaven	<=2.5.1	Not reported
org.springframework.webflow:spring-webflowmaven	>=4.0.0 <4.0.1	4.0.1
org.springframework.webflow:spring-webflowmaven	>=3.0.0 <3.0.2	3.0.2
org.springframework.webflow:spring-webflowmaven	>=0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Spring/Spring Web Flow, org.springframework.webflow:spring-webflow, org.springframework.webflow:spring-webflow.
Review the reported fix. Update Spring/Spring Web Flow to 4.0.0.1; org.springframework.webflow:spring-webflow to 4.0.1; org.springframework.webflow:spring-webflow to 3.0.2; org.springframework.webflow:spring-webflow to 4.0.1; org.springframework.webflow:spring-webflow to 3.0.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jun 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 23, 2026

Sources and claim methodology

Upstream source description

Applications that configure the WebFlowELExpressionParser are vulnerable to the use of malicious Unified EL expressions. Affected versions: Spring Web Flow 4.0.0; 3.0.0 through 3.0.1; 2.5.0 through 2.5.1.

Quoted source text, attributed separately from HOL analysis.