{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82710", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-09-07T20:30:01.990Z", "datePublished": "2026-09-08T00:23:36.912Z", "dateUpdated": "2026-09-08T00:23:36.912Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:ash-project:usage_rules:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Mix.Tasks.UsageRules.SearchDocs'"], "packageName": "usage_rules", "packageURL": "pkg:hex/usage_rules", "product": "usage_rules", "programFiles": ["lib/mix/tasks/usage_rules.search_docs.ex"], "programRoutines": [{"name": "'Elixir.Mix.Tasks.UsageRules.SearchDocs':format_search_result_markdown/4"}], "repo": "https://github.com/ash-project/usage_rules", "vendor": "ash-project", "versions": [{"lessThan": "1.2.8", "status": "affected", "version": "0.1.18", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:ash-project:usage_rules:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Mix.Tasks.UsageRules.SearchDocs'"], "packageName": "ash-project/usage_rules", "packageURL": "pkg:github/ash-project/usage_rules", "product": "usage_rules", "programFiles": ["lib/mix/tasks/usage_rules.search_docs.ex"], "programRoutines": [{"name": "'Elixir.Mix.Tasks.UsageRules.SearchDocs':format_search_result_markdown/4"}], "repo": "https://github.com/ash-project/usage_rules", "vendor": "ash-project", "versions": [{"lessThan": "3b8ebb4117d3272bbd436e6c2432113ba6685dbb", "status": "affected", "version": "2da7a99536041d63ec1f391d019565789a59595f", "versionType": "git"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Reachable only when a developer runs <code>mix usage_rules.search_docs</code> in a terminal emulator that interprets ANSI escape sequences and the results include documentation from an attacker-published package (for example a broad <code>--everywhere</code> search).</p>"}, {"base64": false, "type": "text/markdown", "value": "Reachable only when a developer runs `mix usage_rules.search_docs` in a terminal emulator that interprets ANSI escape sequences and the results include documentation from an attacker-published package (for example a broad `--everywhere` search)."}], "value": "Reachable only when a developer runs mix usage_rules.search_docs in a terminal emulator that interprets ANSI escape sequences and the results include documentation from an attacker-published package (for example a broad --everywhere search)."}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ash-project:usage_rules:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.2.8", "versionStartIncluding": "0.1.18", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "finder", "value": "Peter Ullrich"}, {"lang": "en", "type": "reporter", "value": "Peter Ullrich"}, {"lang": "en", "type": "remediation developer", "value": "Zach Daniel / Ash Project"}, {"lang": "en", "type": "coordinator", "value": "Jonatan M\u00e4nnchen / EEF"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in ash-project usage_rules allows a malicious package publisher to inject terminal control sequences into the output of <code>mix usage_rules.search_docs</code>.</p>\n<p><code>mix usage_rules.search_docs</code> searches Hex documentation through <code>search.hexdocs.pm</code>, which indexes the documentation of every published package, and prints the matching results (title, package, type, doc reference, and highlighted snippets) to the terminal. The formatter in <code>Mix.Tasks.UsageRules.SearchDocs</code> interpolated those publisher-controlled fields verbatim, neutralizing no terminal control characters; the only transform it applied adds escape sequences rather than removing them. A malicious package can embed ANSI terminal escape sequences (cursor movement, line erase, carriage returns, OSC 52 clipboard writes) in its indexed documentation, so when a developer runs a search that surfaces those docs the sequences reach the terminal unchanged \u2014 forging the displayed hexdocs URL or a suggested command, hiding text, or writing to the clipboard. No authentication or privileged position is required; only publishing a package.</p>\n<p>This issue affects usage_rules: from 0.1.18 before 1.2.8.</p>"}, {"base64": false, "type": "text/markdown", "value": "Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in ash-project usage_rules allows a malicious package publisher to inject terminal control sequences into the output of `mix usage_rules.search_docs`.\n\n`mix usage_rules.search_docs` searches Hex documentation through `search.hexdocs.pm`, which indexes the documentation of every published package, and prints the matching results (title, package, type, doc reference, and highlighted snippets) to the terminal. The formatter in `Mix.Tasks.UsageRules.SearchDocs` interpolated those publisher-controlled fields verbatim, neutralizing no terminal control characters; the only transform it applied adds escape sequences rather than removing them. A malicious package can embed ANSI terminal escape sequences (cursor movement, line erase, carriage returns, OSC 52 clipboard writes) in its indexed documentation, so when a developer runs a search that surfaces those docs the sequences reach the terminal unchanged \u2014 forging the displayed hexdocs URL or a suggested command, hiding text, or writing to the clipboard. No authentication or privileged position is required; only publishing a package.\n\nThis issue affects usage_rules: from 0.1.18 before 1.2.8."}], "value": "Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in ash-project usage_rules allows a malicious package publisher to inject terminal control sequences into the output of mix usage_rules.search_docs.\n\nmix usage_rules.search_docs searches Hex documentation through search.hexdocs.pm, which indexes the documentation of every published package, and prints the matching results (title, package, type, doc reference, and highlighted snippets) to the terminal. The formatter in Mix.Tasks.UsageRules.SearchDocs interpolated those publisher-controlled fields verbatim, neutralizing no terminal control characters; the only transform it applied adds escape sequences rather than removing them. A malicious package can embed ANSI terminal escape sequences (cursor movement, line erase, carriage returns, OSC 52 clipboard writes) in its indexed documentation, so when a developer runs a search that surfaces those docs the sequences reach the terminal unchanged \u2014 forging the displayed hexdocs URL or a suggested command, hiding text, or writing to the clipboard. No authentication or privileged position is required; only publishing a package.\n\nThis issue affects usage_rules: from 0.1.18 before 1.2.8."}], "impacts": [{"capecId": "CAPEC-93", "descriptions": [{"lang": "en", "value": "CAPEC-93 Log Injection-Tampering-Forging"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 2.3, "baseSeverity": "LOW", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-150", "description": "CWE-150 Improper Neutralization of Escape, Meta, or Control Sequences", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-09-08T00:23:36.912Z"}, "references": [{"tags": ["vendor-advisory", "related"], "url": "https://github.com/ash-project/usage_rules/security/advisories/GHSA-j59f-776f-23hp"}, {"tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-82710.html"}, {"tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-82710"}, {"tags": ["patch"], "url": "https://github.com/ash-project/usage_rules/commit/3b8ebb4117d3272bbd436e6c2432113ba6685dbb"}], "source": {"discovery": "EXTERNAL"}, "title": "Terminal escape sequence injection in mix usage_rules.search_docs via package documentation metadata"}}}

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