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CVE-2026-41852

LOW

CVE-2026-41852 is a low-severity (CVSS 3.7) CWE-863 vulnerability in vmware spring framework. O3 Security detects and blocks CVE-2026-41852 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.

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…

Published
Jun 9, 2026
Updated
Jul 23, 2026
Affected
0 pkgs
Patched
None yet
Exploits
None indexed

Description

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.

Affected Products

1 product · 4 configurations
Application
spring frameworkvmware
≥ 7.0.0 && < 7.0.7.1
range

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every vmware spring framework deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

  2. Fix

    Apply the vmware spring framework security patch or hotfix for CVE-2026-41852 on the affected version, following the vendor advisory for your exact build.

  3. Workarounds

    Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

  4. How O3 protects you

    O3 detects and blocks CVE-2026-41852 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2026-41852. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

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.
O3 Security · Runtime Protection

Is CVE-2026-41852 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2026-41852 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.