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2688 articles · 130293 vulns · 36/41 feeds (7d)
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4.3
CVE-2026-40968EXPLOITEDPATCHED
spring · spring grpc

Spring gRPC SecurityContext leaks across requests on authorization failure

Description

When an authenticated user is denied access to a gRPC method, their authenticated identity remains bound to the gRPC worker thread and can be inherited by a subsequent unauthenticated request on the same thread. This may allow the subsequent user to gain escalated permissions. Affected versions: Spring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.

Affected Products

VendorProductVersions
springspring grpc1.0.0, 1.0.2

References

  • https://spring.io/security/cve-2026-40968

Related News (1 articles)

Tier C
VulDB17h ago
CVE-2026-40968 | Vmware Spring gRPC up to 1.0.2 SecurityContext improper isolation or compartmentalization
→ No new info (linked only)
CVSS 3.14.3 HIGH
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
1.0.3
CWECWE-653
PublishedApr 28, 2026
Last enriched16h agov2
Trending Score43
Source articles1
Independent1
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 28, 2026
Discovered by ZDM
Apr 28, 2026
Actively Exploited
Apr 28, 2026
Patch Available
Apr 28, 2026
Updated: affectedVersions, severity, activelyExploited
Apr 28, 2026

Version History

v2
Last enriched 16h ago
v2Tier C16h ago

Updated vendor to Vmware, product to spring grpc, severity to HIGH, and marked the vulnerability as actively exploited.

affectedVersionsseverityactivelyExploited
via VulDB
v119h ago

Initial creation