CVE-2026-102820

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{"bugzilla": {"description": "pageant: pageant: Denial of Service via untrusted response length in shared memory", "id": "2543500", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2543500"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in pageant. On Windows, the component fails to properly validate the response length received through shared memory when communicating with an authentication agent. A local attacker impersonating the agent can supply a manipulated length value, triggering an oversized memory allocation and an out-of-bounds memory read. This can lead to a Denial of Service (DoS) by crashing the client application and may potentially result in information disclosure."], "name": "CVE-2026-102820", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "openshell", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-09-29T18:18:43Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-102820\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-102820\nhttps://github.com/Eugeny/russh/commit/5d566989ebabfdebfe6b33243d31765a0812260b\nhttps://github.com/Eugeny/russh/releases/tag/v0.63.2\nhttps://github.com/Eugeny/russh/security/advisories/GHSA-g4mp-vgx3-xrvm"], "threat_severity": "Moderate"}

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