EUVD-2026-67168
GHSA-vj7f-9q44-g5xv
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Network vector and no-privilege requirement confirmed; AC:H reflects the measurement difficulty of timing attacks; C:H as secret recovery is the sole impact.
Primary rating from Vendor (vmware).
CVSS VectorVendor: vmware
Lifecycle Timeline
2DescriptionCVE.org
Several components in Spring Security compare security-sensitive values using standard string equality (String.equals()) rather than a constant-time comparison. Because String.equals() returns as soon as it finds a differing character, the time taken to reject an incorrect value is proportional to the number of leading characters that match the expected value. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Security 6.4.0 - 6.4.18 Spring Security 5.8.0 - 5.8.27 Spring Security 5.7.0 - 5.7.25
AnalysisAI
Timing side-channel exposure in Spring Security allows remote unauthenticated attackers to progressively infer security-sensitive string values - such as CSRF tokens, bearer tokens, or other secrets compared at the application layer - by statistically measuring the time differential between rejection responses. Multiple active Spring Security release trains are affected, spanning versions 5.7.x through 7.1.x, representing a broad swath of production Spring-based Java applications. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to be positioned on a low-latency network path to the target endpoint - same cloud VPC, shared Kubernetes node, or internal network - because internet-grade jitter drowns out the nanosecond-scale timing signal. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N) scores 5.9 Medium, and this calibration is accurate: the AC:H reflects the genuine practical difficulty of executing timing attacks reliably across the public internet, where network jitter, JVM garbage collection pauses, load balancer variability, and OS thread scheduling all introduce noise orders of magnitude larger than the timing signal being measured. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary remediation is upgrading to a patched Spring Security release; exact fix versions should be confirmed against the vendor advisory at https://spring.io/security/cve-2026-59276, as the input data does not specify fixed version numbers - no exact patch version is independently confirmed from the available data. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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