{"id":"CVE-2022-29166","aliases":["GHSA-37hr-348p-rmf4"],"url":"https://o3.security/vulnerability/CVE-2022-29166","summary":"Improper handling of multiline messages in matrix-appservice-irc","details":"matrix-appservice-irc is a Node.js IRC bridge for Matrix. The vulnerability in node-irc allows an attacker to manipulate a Matrix user into executing IRC commands by having them reply to a maliciously crafted message. The vulnerability has been patched in matrix-appservice-irc 0.33.2. Refrain from replying to messages from untrusted participants in IRC-bridged Matrix rooms. There are no known workarounds for this issue.","published":"2022-05-05T23:05:14Z","modified":"2026-08-12T03:51:28.533761198Z","cvss":{"score":8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"matrix-appservice-irc","fixedVersion":"0.33.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/29xxx/CVE-2022-29166.json"},{"type":"ADVISORY","url":"https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29166"},{"type":"ARTICLE","url":"https://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severity"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:28.533761198Z"}}