CVE-2026-25635 (GCVE-0-2026-25635)
Vulnerability from cvelistv5 – Published: 2026-02-06 20:10 – Updated: 2026-02-06 20:10
VLAI?
Title
calibre has a Path Traversal Leading to Arbitrary File Write and Potential Code Execution
Summary
calibre is an e-book manager. Prior to 9.2.0, Calibre's CHM reader contains a path traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows (haven't tested on other OS's), this can lead to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. This vulnerability is fixed in 9.2.0.
Severity ?
8.6 (High)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| kovidgoyal | calibre |
Affected:
< 9.2.0
|
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"cna": {
"affected": [
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"product": "calibre",
"vendor": "kovidgoyal",
"versions": [
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"version": "\u003c 9.2.0"
}
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],
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}
],
"metrics": [
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"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-22",
"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-06T20:10:29.839Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/kovidgoyal/calibre/security/advisories/GHSA-32vh-whvh-9fxr",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/kovidgoyal/calibre/security/advisories/GHSA-32vh-whvh-9fxr"
},
{
"name": "https://github.com/kovidgoyal/calibre/commit/9739232fcb029ac15dfe52ccd4fdb4a07ebb6ce9",
"tags": [
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],
"url": "https://github.com/kovidgoyal/calibre/commit/9739232fcb029ac15dfe52ccd4fdb4a07ebb6ce9"
}
],
"source": {
"advisory": "GHSA-32vh-whvh-9fxr",
"discovery": "UNKNOWN"
},
"title": "calibre has a Path Traversal Leading to Arbitrary File Write and Potential Code Execution"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-25635",
"datePublished": "2026-02-06T20:10:29.839Z",
"dateReserved": "2026-02-04T05:15:41.790Z",
"dateUpdated": "2026-02-06T20:10:29.839Z",
"state": "PUBLISHED"
},
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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