CVE-2026-102822

{"id": "CVE-2026-102822", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-102822", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-29T19:53:03.923621Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "Eugeny", "product": "russh", "versions": [{"status": "affected", "version": "< 0.63.1"}]}]}], "published": "2026-09-29T19:17:24.190", "references": [{"url": "https://github.com/Eugeny/russh/commit/2885385abfee279092a41d80c6cb6ac367353159", "source": "security-advisories@github.com"}, {"url": "https://github.com/Eugeny/russh/releases/tag/v0.63.1", "source": "security-advisories@github.com"}, {"url": "https://github.com/Eugeny/russh/security/advisories/GHSA-p8qx-h547-fjw9", "source": "security-advisories@github.com"}, {"url": "https://github.com/Eugeny/russh/security/advisories/GHSA-p8qx-h547-fjw9", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-129"}]}], "descriptions": [{"lang": "en", "value": "Russh is a Rust SSH client and server library. Prior to 0.63.1, a connection configured to permit mac=none can negotiate it with a MAC-requiring CTR or CBC block cipher because the selection logic validates needs_mac() only when MAC selection fails. A remote peer can then send a packet with a decrypted length of zero, causing russh/src/cipher/mod.rs to shrink the previously read block before indexing buffer.buffer[16..], which panics and terminates the connection task. This issue is fixed in version 0.63.1."}], "lastModified": "2026-09-29T20:17:17.673", "sourceIdentifier": "security-advisories@github.com"}