CVE-2026-41839GHSA-4HFH-6X8G-GWPP
Spring Framework Escalation via Session Fixation in WebFlux
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 7.0.7.1, 6.2.18.1, 6.1.28, 5.3.49, 7.0.8, and 1 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Spring Spring Framework
From 7.0.0 · fixed in 7.0.7.1; From 6.2.0 · fixed in 6.2.18.1; From 6.1.0 · fixed in 6.1.28; From 5.3.0 · fixed in 5.3.49
- org.springframework:spring-webfluxMaven
From 7.0.0 · fixed in 7.0.8
- org.springframework:spring-webfluxMaven
From 6.2.0 · fixed in 6.2.19
- org.springframework:spring-webfluxMaven
From 6.1.0 · through 6.1.21
- org.springframework:spring-webfluxMaven
through 5.3.39