NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
☕
☕ Maven
Not in CISA KEV
MEDIUM severity

CVE-2017-4971 — spring-webflow

MEDIUM

CVE-2017-4971 is a medium-severity (CVSS 5.9) CWE-1188 vulnerability in org.springframework.webflow:spring-webflow. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for org.springframework.webflow:spring-webflow — see the affected versions and patch details below.

Insecure Default Initialization of Resource in Pivotal Spring Web Flow

Also known asGHSA-fg9w-cffm-pmh2
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
2 known
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
14.7%probability of exploitation in next 30 days
Moderate Risk0.00%
Lower risk than most CVEs97th percentile — riskier than 97% of all scored CVEsHighest risk
0.00%31.2%62.4%93.6%75.4%14.7%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕org.springframework.webflow:spring-webflow

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

An issue was discovered in Pivotal Spring Web Flow through 2.4.4. Applications that do not change the value of the MvcViewFactoryCreator useSpringBinding property which is disabled by default (i.e., set to 'false') can be vulnerable to malicious EL expressions in view states that process form submissions but do not have a sub-element to declare explicit data binding property mappings.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.springframework.webflow:spring-webflow≥ 2.4.0&&< 2.4.52.4.5org.springframework.webflow:spring-webflow:2.4.5

Affected Products

1 product · 4 configurations
Application
spring web flowbroadcom
4 versions
2.4.02.4.12.4.22.4.4
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

An issue was discovered in Pivotal Spring Web Flow through 2.4.4. Applic…

bobao.360.cnAwesomePocJun 2020

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.springframework.webflow:spring-webflow, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.springframework.webflow:spring-webflow to 2.4.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-4971 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

An issue was discovered in Pivotal Spring Web Flow through 2.4.4. Applications that do not change the value of the MvcViewFactoryCreator useSpringBinding property which is disabled by default (i.e., set to 'false') can be vulnerable to malicious EL expressions in view states that process form submissions but do not have a sub-element to declare explicit data binding property mappings.
O3 Security · Impact-Aware SCA

Is CVE-2017-4971 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works
CVE-2017-4971: spring-webflow — Fixed in 2.4.5