CVE-2026-40985 json
Data Binding Vulnerability in Spring Web Flow with Unified EL Parser
published 2026-06-11 4 mo ago modified 2026-09-04 2 mo ago also GHSA-9ggw-87m9-9gfc , EUVD-2026-36200
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.springframework.webflow:spring-webflow 3.0.2, 4.0.1
- Spring Spring Web Flow 2.5.2, 3.0.1.1, 4.0.0.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N |
| GitHub | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.springframework.webflow:spring-webflow | >=4.0.0, <4.0.1 >=3.0.0, <3.0.2 <=2.5.1 |
4.0.1 3.0.2 |
Affected products
- Spring Spring Web Flow
Classification
- Weakness
-
- CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement
References
-
spring.io
/security/cve-2026-40985
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-40985
advisory
-
github.com
/spring-projects/spring-webflow
package
Sources
- CVE List CVE-2026-40985
- GitHub Advisory GHSA-9ggw-87m9-9gfc
- NVD CVE-2026-40985
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.