CVE-2026-10532

LowCVSS 2.9/10Last modified Jul 22, 2026

Description

Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules) allows Object Injection, albeit heavily restricted.

More precisely, an attacker able to influence serialized data sent to SimpleSocketServer or SimpleSSLSocketServer can instantiate Proxy objects.

Although deserialization is heavily restricted by HardenedObjectInputStream and no practical way to achieve remote code execution or significant privilege escalation has been identified, this issue constitutes a bypass of the intended security restrictions.

This issue affects logback: through 1.5.33 inclusive.

Metrics

CVSS 4.0 2.9/10

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:M/U:Green

Weakness enumeration

CWE-502

Affected software

Vendor	Product	Versions
QOS.CH Sarl	logback	<= 1.5.33

References

https://logback.qos.ch/news.html#1.5.34

Timeline

Published: Jun 1, 2026
Last modified: Jul 22, 2026
NVD status: Deferred

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