CVE-2026-34317

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.0.0,8.0.45]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.4.0,8.4.8]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[9.0.0,9.6.0]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MySQL Shell", "source": "cna", "vendor": "Oracle Corporation"}, "product": "mysql_shell", "vendor": "oracle"}], "analysis": {"en": {"generated_at": "2026-04-29T00:20:57.378659+00:00", "value": {"mitigation_remediation": ["Apply the Oracle patch or upgrade to a non\u2011affected MySQL Shell release as detailed in the security advisory, which addresses the underlying resource handling flaws.", "Restrict local access to MySQL Shell so that only authorized administrators can run it, and limit the number of concurrent instances through OS\u2011level resource controls (e.g., ulimit, cgroups) to reduce uncontrolled resource consumption.", "Configure or review service start\u2011up scripts to ensure MySQL Shell is initialized before use and that cleanup routines are executed at exit, thereby preventing resource leaks and improper shutdown.", "Monitor MySQL Shell logs for crash patterns and schedule automated restarts or apply watchdog mechanisms to maintain availability."], "summary": {"action": "Apply Patch", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "Affected versions are Oracle MySQL Shell 8.0.0 through 8.0.45, 8.4.0 through 8.4.8, and 9.0.0 through 9.6.0. The flaw exists in the Shell: Core Client component of Oracle MySQL Shell distributed by Oracle.", "description_and_impact": "The vulnerability resides in the core client component of Oracle MySQL Shell. It allows a low\u2011privileged user who can log onto the system where the shell runs to cause the application to hang or crash repeatedly. A successful exploitation results only in an availability impact, with no modification of data or confidentiality compromise.", "risk_and_exploitability": "The CVSS base score is 5.0, indicating moderate impact on availability. Exploitation requires local access with low privilege levels, and a person other than the attacker must provide user interaction. The EPSS score is < 1%, indicating a very low likelihood of exploitation in the wild, and the vulnerability is not listed in the CISA KEV catalog. Because the flaw causes a denial of service, an attacker who can obtain local access can disrupt database operations, though no data loss or unauthorized access occurs."}}}}, "created": "2026-04-22T02:30:05.613115+00:00", "title": "Denial of Service via Uncontrolled Crash in Oracle MySQL Shell", "updated": "2026-04-29T00:30:16.122201+00:00", "vendors": ["oracle", "oracle$PRODUCT$mysql_shell"]}