CVE Explorer

CVE-2026-26064

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Versions 9.2.1 and below contain a Path Traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows, this leads to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. Function extract_pictures only checks startswith('Pictures'), and does not sanitize '..' sequences. calibre's own ZipFile.extractall() in

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6719779e2fa8009296af9683d46cdc46a62051dab005e4f2b99421b05c8f347e

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"calibre","vendor":"kovidgoyal","versions":[{"status":"affected","version":"< 9.3.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:b386b19a85c5b13cc128f87aa29ca0d822db2908f09b9ffdeb15f083332a58ca · sha256:32a050544c6cfb65… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:b386b19a85c5b13cc128f87aa29ca0d822db2908f09b9ffdeb15f083332a58ca · sha256:32a050544c6cfb65… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:b386b19a85c5b13cc128f87aa29ca0d822db2908f09b9ffdeb15f083332a58ca · sha256:32a050544c6cfb65… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/kovidgoyal/calibre/commit/e1b5f9b45a5e8fa96c136963ad9a1d35e6adac62","tags":["x_refsource_MISC"],"url":"https://github.com/kovidgoyal/calibre/commit/e1b5f9b45a5e8fa96c136963ad9a1d35e6adac62"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:b386b19a85c5b13cc128f87aa29ca0d822db2908f09b9ffdeb15f083332a58ca · sha256:32a050544c6cfb65… · /containers/cna/references/1

{"name":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-72ch-3hqc-pgmp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-72ch-3hqc-pgmp"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:b386b19a85c5b13cc128f87aa29ca0d822db2908f09b9ffdeb15f083332a58ca · sha256:32a050544c6cfb65… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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