GHSA-jhq6-gfmj-v8fx: Logback vulnerable to Object Injection through HardenedObjectInputStream modules

lowCVE-2026-10532

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.

Details

Source: GitHub Security Advisories (INTL · database · site)
Severity: low
Published: 2026-06-01
Last updated: 2026-07-08
Exploitation: Not in CISA KEV at last sync

Original advisory: https://github.com/advisories/GHSA-jhq6-gfmj-v8fx

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-105320.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-10532	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEW] [high] IBM Operational Decision Manager: Multiple vulnerabilitiescert-bund

GHSA-jhq6-gfmj-v8fx: Logback vulnerable to Object Injection through HardenedObjectInputStream modules

Details

Exploitation outlook

Referenced CVEs

Same CVEs, other sources

More from GitHub Security Advisories