{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-76242", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-19T11:38:33.225Z", "datePublished": "2026-08-19T14:02:19.435Z", "dateUpdated": "2026-08-20T15:38:01.701Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-19T14:02:19.435Z" }, "datePublic": "2026-05-19T00:00:00.000Z", "title": "stigmem Federation Peer Registration Authentication Bypass", "descriptions": [ { "lang": "en", "value": "stigmem-node 0.9.0a1 accepts federation peer key material during peer registration without a separate administrator out-of-band fingerprint approval step. On nodes that accept federation peer registration over a network where initial registration can be intercepted or misdirected, an attacker can register a malicious peer and gain access to or tamper with federation traffic. Fixed in 0.9.0a2, which introduces a pending approval flow requiring administrator fingerprint verification before peer tokens are accepted." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Improper Certificate Validation", "cweId": "CWE-295", "type": "CWE" } ] } ], "affected": [ { "vendor": "eidetic-labs", "product": "stigmem", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/stigmem-node", "versions": [ { "version": "0", "status": "affected", "versionType": "custom", "lessThan": "0.9.0a2" }, { "version": "0.9.0a2", "status": "unaffected", "versionType": "custom" } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL" } } ], "references": [ { "url": "https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-9vp8-3hmv-8fgh", "tags": [ "vendor-advisory" ], "name": "GitHub Security Advisory (GHSA-9vp8-3hmv-8fgh)" }, { "name": "VulnCheck Advisory: stigmem Federation Peer Registration Authentication Bypass", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/stigmem-federation-peer-registration-authentication-bypass" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-20T15:37:49.018621Z", "id": "CVE-2026-76242", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-20T15:38:01.701Z" } } ] } }