CVE-2026-111061

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{"bugzilla": {"description": "russh: russh: Denial of Service via resource exhaustion in SSH agent", "id": "2555709", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555709"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-770", "details": ["A flaw was found in russh. When processing key addition requests containing lifetime constraints, the Secure Shell (SSH) agent server spawns a separate long-lived task for repeated constraint records and fails to roll back tasks if subsequent parsing fails. An attacker capable of communicating with the SSH agent locally or through agent forwarding can exploit this vulnerability to exhaust system memory and tasks. This can cause the agent process to become unresponsive or terminate unexpectedly, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-111061", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "openshell", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-10-19T16:30:24Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-111061\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-111061\nhttps://github.com/Eugeny/russh/commit/4c305033d72f8e5dd21a3fd4c53a6c291a16ebd1\nhttps://github.com/Eugeny/russh/releases/tag/v0.64.1\nhttps://github.com/Eugeny/russh/security/advisories/GHSA-4wc5-f2rc-q74m"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.64.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "russh", "source": "cna", "vendor": "Eugeny"}, "product": "russh", "vendor": "eugeny"}], "created": "2026-10-19T18:00:02.657136+00:00", "updated": "2026-10-19T22:00:06.458417+00:00", "vendors": ["eugeny", "eugeny$PRODUCT$russh"]}