{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41253","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","state":"PUBLISHED","assignerShortName":"mitre","dateReserved":"2026-04-18T05:27:07.778Z","datePublished":"2026-04-18T05:27:08.202Z","dateUpdated":"2026-04-20T15:52:10.357Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unknown","product":"iTerm2","vendor":"iTerm2","versions":[{"lessThanOrEqual":"3.6.9","status":"affected","version":"0","versionType":"semver"}]}],"descriptions":[{"lang":"en","value":"In iTerm2 through 3.6.9, displaying a .txt file can cause code execution via DCS 2000p and OSC 135 data, if the working directory contains a malicious file whose name is valid output from the conductor encoding path, such as a pathname with an initial ace/c+ substring, aka \"hypothetical in-band signaling abuse.\" This occurs because iTerm2 accepts the SSH conductor protocol from terminal output that does not originate from a legitimate conductor session."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":6.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-829","description":"CWE-829 Inclusion of Functionality from Untrusted Control Sphere","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre","dateUpdated":"2026-04-18T05:32:12.583Z"},"references":[{"url":"https://iterm2.com/downloads.html"},{"url":"https://blog.calif.io/p/mad-bugs-even-cat-readmetxt-is-not"},{"url":"https://github.com/gnachman/iTerm2/commit/a9e745993c2e2cbb30b884a16617cd5495899f86"},{"url":"https://news.ycombinator.com/item?id=47809190"}],"x_generator":{"engine":"CVE-Request-form 0.0.1"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:iterm2:iterm2:*:*:*:*:*:*:*:*","versionEndIncluding":"3.6.9"}]}]}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-20T15:51:58.997961Z","id":"CVE-2026-41253","options":[{"Exploitation":"poc"},{"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":"2026-04-20T15:52:10.357Z"}}]}}