OliveTin has a Concurrent Template Parsing Race Condition which Leads to Cross-Request Command Contamination_CVE-2026-48708

{
    "lastseen": "",
    "description": "OliveTin gives access to predefined shell commands from a web interface. In versions 3000.0.0 and prior, the template engine uses a single shared text/template.Template instance (tpl package-level variable in service/internal/tpl/templates.go) across all goroutines. Every action execution calls tpl.Parse(source) followed by t.Execute() on this shared instance with no synchronization. When two or more actions execute concurrently (which is the normal case \u2014 each ExecRequest spawns a goroutine), a race condition occurs: one goroutine's Parse overwrites the template tree while another goroutine is calling Execute, causing cross-user command contamination, Go runtime panic, and incorrect command execution. This issue has been resolved in version 3000.13.0.",
    "published": "2026-06-15T19:59:27.859Z",
    "modified": "2026-06-15T19:59:27.859Z",
    "type": "cve",
    "title": "OliveTin has a Concurrent Template Parsing Race Condition which Leads to Cross-Request Command Contamination",
    "source": "GitHub_M",
    "references": "https://github.com/OliveTin/OliveTin/security/advisories/GHSA-7fq5-7wr8-rjwj\nhttps://github.com/OliveTin/OliveTin/releases/tag/3000.13.0",
    "id": "CVE-2026-48708",
    "bulletinFamily": "",
    "cwe": [
        "CWE-362",
        "CWE-567"
    ],
    "cvelist": null,
    "sourceData": "OliveTin OliveTin < 3000.13.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "OliveTin",
    "version": "< 3000.13.0",
    "vendor": "OliveTin",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
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    "ai_score": 0
}