EUVD-2026-35340
GHSA-9f52-rjqv-25qv
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Lifecycle Timeline
2DescriptionNVD
A vulnerability in Spring Expression Language (SpEL) evaluation logic allows for arbitrary zero-argument method invocation, even within restricted or read-only contexts, which may allow an attacker to invoke unintended application logic.
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.
AnalysisAI
Spring Expression Language (SpEL) evaluation logic in Spring Framework 5.3.x through 7.0.x fails to enforce method invocation restrictions in read-only or restricted contexts, allowing remote unauthenticated attackers (CVSS PR:N, AV:N) to invoke arbitrary zero-argument methods and trigger unintended application logic. Scored LOW (3.7) with only availability impact per CVSS (A:L), though the 'Authentication Bypass' tag and CWE-863 (Incorrect Authorization) suggest the authorization bypass itself may have broader implications not fully reflected in the score. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target application (1) uses Spring Framework's SpEL evaluation engine, (2) evaluates expressions that are influenced by attacker-controlled or externally sourced input, and (3) relies on a restricted or read-only SpEL context (e.g., SimpleEvaluationContext) as a security boundary to prevent method invocation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 3.7 LOW (AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L) reflects a real-world risk that is constrained by high attack complexity (AC:H) and limited impact scope (availability only, no confidentiality or integrity). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker identifies an application endpoint that evaluates SpEL expressions derived from user-supplied input (such as a query filter, configuration value, or data-binding expression) and relies on a restricted SpEL context for safety. The attacker crafts a payload invoking a zero-argument method available on an accessible object in the expression context - such as a method that triggers a state change, logs data, or forces garbage collection - and submits it via a standard HTTP request. … |
| Remediation | Upgrade Spring Framework to the first version beyond each affected range: 7.0.8 or later for the 7.0.x train, 6.2.19 or later for the 6.2.x train, 6.1.28 or later for the 6.1.x train, and 5.3.49 or later for the 5.3.x train - however, these exact patch versions are inferred from the stated affected ranges and are not independently confirmed from the available input data; consult the vendor advisory at https://spring.io/security/cve-2026-41852 for the definitive fixed releases. … Detailed patch versions, workarounds, and compensating controls in full report. |
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