{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100675","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-26T02:34:55.635Z","datePublished":"2026-09-26T13:23:38.319Z","dateUpdated":"2026-09-26T13:23:38.319Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-26T13:23:38.319Z"},"datePublic":"2026-09-11T00:00:00.000Z","title":"stoatchat before 0.15.5 Denial of Service via mass mentions","descriptions":[{"lang":"en","value":"stoatchat versions before 0.15.5 contain a denial of service vulnerability in the acknowledgement worker that processes mass mention messages. Authenticated users can send five crafted role-mention messages to terminate all acknowledgement workers, disabling push notifications and mention badges deployment-wide until the API process restarts."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Uncaught Exception","cweId":"CWE-248","type":"CWE"}]}],"affected":[{"vendor":"stoatchat","product":"stoatchat","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"0.15.5"},{"version":"0.15.5","status":"unaffected","versionType":"semver"}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/stoatchat/stoatchat/security/advisories/GHSA-5gq6-v4cf-3qq8","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-5gq6-v4cf-3qq8)"},{"name":"VulnCheck Advisory: stoatchat before 0.15.5 Denial of Service via mass mentions","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/stoatchat-before-0.15.5-denial-of-service-via-mass-mentions"}],"credits":[{"lang":"en","value":"QuentinRa","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}