CVE-2026-34730

{"id": "CVE-2026-34730", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-34730", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-03T13:01:09.904637Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "copier-org", "product": "copier", "versions": [{"status": "affected", "version": "< 9.14.1"}]}]}], "published": "2026-04-02T19:21:32.560", "references": [{"url": "https://github.com/copier-org/copier/commit/5413062eb17b73dc885f5e645cdc161e69ef641b", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/copier-org/copier/releases/tag/v9.14.1", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/copier-org/copier/security/advisories/GHSA-hgjq-p8cr-gg4h", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/copier-org/copier/security/advisories/GHSA-hgjq-p8cr-gg4h", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "Copier is a library and CLI app for rendering project templates. Prior to version 9.14.1, Copier's _external_data feature allows a template to load YAML files using template-controlled paths. If untrusted templates are in scope, a malicious template can read attacker-chosen YAML-parseable local files that are accessible to the user running Copier and expose their contents in rendered output. This issue has been patched in version 9.14.1."}], "lastModified": "2026-06-17T10:39:31.487", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:copier-org:copier:*:*:*:*:*:python:*:*", "vulnerable": true, "matchCriteriaId": "08914294-5C57-49CB-8D05-BBB156C6B8B1", "versionEndExcluding": "9.14.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}