CVE-2026-41839— Spring Framework Escalation via Session Fixation in WebFlux
Possible ATT&CK Techniques 1AI
T1078.003 · Local AccountsAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Spring | Spring Framework | 7.0.0< 7.0.8 | affected |
6.2.0< 6.2.19 | affected | ||
6.1.0< 6.1.28 | affected | ||
5.3.0< 5.3.49 | affected |
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I. Basic Information for CVE-2026-41839
Vulnerability Information
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Vulnerability Title
Spring Framework Escalation via Session Fixation in WebFlux
Source: NVD (National Vulnerability Database)
Vulnerability Description
A WebFlux application with a compromised subdomain (for example, compromised via cross-site scripting (XSS)) is vulnerable to an escalation attack exchanging a known session ID for that of an authenticated user. 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
会话固定
Source: NVD (National Vulnerability Database)
Vulnerability Title
Spring Framework 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Spring Framework是Spring开源的一款应用开发框架。 Spring Framework 7.0.0至7.0.7版本、6.2.0至6.2.18版本、6.1.0至6.1.27版本和5.3.0至5.3.48版本存在授权问题漏洞，该漏洞源于WebFlux应用程序在子域名被攻破时，可能通过交换已知会话ID进行权限提升攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Spring | Spring Framework | 7.0.0 ~ 7.0.7.1 | - |
II. Public POCs for CVE-2026-41839
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-41839 (1)
Same Patch Batch · Spring · 2026-06-09 · 51 CVEs total
| CVE-2026-41717 | 8.1 HIGH | Spring Data MongoDB - SpEL Expression Injection via Annotated Query Parameter Binding |
| CVE-2026-41732 | 8.1 HIGH | In Spring for Apache Pulsar, overly broad trusted-package matching in header mapper expose |
| CVE-2026-41855 | 8.1 HIGH | Spring Framework Unsafe Deserialization via Jackson JMS Converters |
| CVE-2026-41729 | 8.1 HIGH | Spring Data REST SpEL Injection via Map Key in JSON Patch |
| CVE-2026-41731 | 8.1 HIGH | In Spring for Apache Kafka, overly broad trusted-package matching in header mappers expose |
| CVE-2026-41003 | 7.6 HIGH | Unencoded HTML Outputs in Spring Security May Allow Cross-Site Scripting |
| CVE-2026-41728 | 7.5 HIGH | Spring Data REST JSON Patch bypasses Jackson read-only property protection on nested objec |
| CVE-2026-40983 | 7.5 HIGH | Micrometer gRPC server instrumentation DoS vulnerability |
| CVE-2026-40984 | 7.5 HIGH | Micrometer HTTP server instrumentations DoS vulnerability |
| CVE-2026-40988 | 7.5 HIGH | Unbounded DEFLATE Inflation in SAML 2.0 Service Provider |
| CVE-2026-41850 | 7.5 HIGH | Spring Framework Algorithmic Denial of Service via SpEL Expressions |
| CVE-2026-41716 | 7.5 HIGH | Spring Data web support unbounded negative-result cache keyed on attacker-supplied propert |
| CVE-2026-41695 | 7.5 HIGH | Denial of Service in Spring Data Commons Property Path Resolution |
| CVE-2026-41849 | 7.5 HIGH | Spring Framework Denial of Service via Integer Overflow in SpEL Expressions |
| CVE-2026-41007 | 7.5 HIGH | Spring HATEOAS heap exhaustion through unbounded internal caching |
| CVE-2026-41006 | 7.5 HIGH | Spring HATEOAS Collection+JSON/UBER deserializers do not honor Jackson configuration |
| CVE-2026-41842 | 7.5 HIGH | Spring Framework Denial of Service via Versioned Resources in Spring MVC and WebFlux |
| CVE-2026-41720 | 7.4 HIGH | Authentication Bypass with Empty Password in Spring LDAP |
| CVE-2026-40993 | 7.3 HIGH | Unfiltered Java Native Deserialization of SAML 2.0 Asserting Party Credentials BLOB Databa |
| CVE-2026-41845 | 7.1 HIGH | Spring Framework Cross-site Scripting via JavaScriptUtils |
Showing top 20 of 51 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Spring Framework
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