{"id":"CVE-2026-100675","title":"stoatchat versions before 0.15.5 contain a denial of service vulnerability in the acknowledgement worker that processes mass mention messages","summary":"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 acknowledgeme…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-248"],"vendor":"stoatchat","product":"stoatchat","affected":["stoatchat < 0.15.5"],"published":"2026-09-26","updated":"2026-09-28","sourceUpdated":"2026-09-28T18:17:14.860","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100675","references":[{"url":"https://github.com/stoatchat/stoatchat/security/advisories/GHSA-5gq6-v4cf-3qq8","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/stoatchat-before-0.15.5-denial-of-service-via-mass-mentions","label":"disclosure@vulncheck.com"},{"url":"https://github.com/stoatchat/stoatchat/security/advisories/GHSA-5gq6-v4cf-3qq8","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-28T18:05:58.547883Z"},"ingestedAt":"2026-09-26T13:33:20.911Z","epss":0.00371,"epssPercentile":0.30826,"slug":"CVE-2026-100675","body":"## Overview\n\nstoatchat 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":212075,"id":"CVE-2026-100675","ts":1790619518688,"field":"exploit_available","old":"false","new":"true"}]}