{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-62331","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-13T21:42:50.094Z","datePublished":"2026-10-30T19:00:25.777Z","dateUpdated":"2026-10-30T19:46:25.082Z"},"containers":{"cna":{"title":"praktor: Telegram upload traversal permits persistent agent instruction injection","problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/mtzanidakis/praktor/security/advisories/GHSA-48v2-6jcm-fc99","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mtzanidakis/praktor/security/advisories/GHSA-48v2-6jcm-fc99"},{"name":"https://github.com/mtzanidakis/praktor/pull/228","tags":["x_refsource_MISC"],"url":"https://github.com/mtzanidakis/praktor/pull/228"},{"name":"https://github.com/mtzanidakis/praktor/commit/c3731eeda01c0b3ec1dbd13cccd5a147c3182141","tags":["x_refsource_MISC"],"url":"https://github.com/mtzanidakis/praktor/commit/c3731eeda01c0b3ec1dbd13cccd5a147c3182141"},{"name":"https://github.com/mtzanidakis/praktor/releases/tag/v0.9.1","tags":["x_refsource_MISC"],"url":"https://github.com/mtzanidakis/praktor/releases/tag/v0.9.1"}],"affected":[{"vendor":"mtzanidakis","product":"praktor","versions":[{"version":"< 0.9.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-30T19:00:25.777Z"},"descriptions":[{"lang":"en","value":"praktor is a multi-agent Claude Code orchestrator with Telegram input and output, Docker isolation, and a Mission Control UI. Prior to 0.9.1, both Telegram upload sites in `internal/telegram/bot.go` concatenate the attacker-controlled document filename into a destination path without sanitization, and `path.Join` collapses parent-directory traversal. A remote Telegram user who can message the bot can therefore write outside `uploads/` within the persistent agent workspace mounted at `/workspace/agent`. Because `allow_from: []` permits all senders by default, no prior authentication or privilege is required in that configuration. The attacker can plant or overwrite `CLAUDE.md`, instruction, skill, hook, or configuration files that the Claude agent reads and operates on across later runs, turning a document upload into stored instruction injection. The demonstrated arbitrary-write scope is the persistent agent workspace volume, not an unrestricted host-filesystem write. This issue is fixed in version 0.9.1."}],"source":{"advisory":"GHSA-48v2-6jcm-fc99","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T19:45:09.898798Z","id":"CVE-2026-62331","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-30T19:46:25.082Z"}}]}}