CVE-2026-73249

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{"affected": [{"affectedData": [{"product": "calibre", "vendor": "kovidgoyal", "versions": [{"status": "affected", "version": "< 9.12.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "calibre is an e-book manager. Prior to 9.12.0, the calibre Content Server endpoint POST /book-update-annotations/{library_id}/{book_id}/{fmt} in src/calibre/srv/books.py omits needs_db_write=True, causing Router.dispatch() to skip ctx.check_for_write_access() before update_annotations() passes attacker-controlled JSON to db.merge_annotations_for_book(), which allows a readonly user or an anonymous user on an unauthenticated deployment to persist unauthorized book annotation changes. This issue is fixed in version 9.12.0."}, {"lang": "es", "value": "calibre es un gestor de libros electr\u00f3nicos. Antes de 9.12.0, el endpoint del Content Server de calibre POST /book-update-annotations/{library_id}/{book_id}/{fmt} en src/calibre/srv/books.py omite needs_db_write=True, causando que Router.dispatch() omita ctx.check_for_write_access() antes de que update_annotations() pase JSON controlado por el atacante a db.merge_annotations_for_book(), lo que permite a un usuario de solo lectura o a un usuario an\u00f3nimo en una implementaci\u00f3n no autenticada persistir cambios no autorizados en las anotaciones de libros. Este problema est\u00e1 solucionado en la versi\u00f3n 9.12.0."}], "id": "CVE-2026-73249", "lastModified": "2026-10-24T15:10:00.190", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-73249", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-12T12:41:56.031175Z", "version": "2.0.3"}}]}, "published": "2026-08-11T22:19:05.687", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/kovidgoyal/calibre/commit/71295e8b62801e1ccecaa4fac47e6942f11cfe1e"}, {"source": "security-advisories@github.com", "url": "https://github.com/kovidgoyal/calibre/releases/tag/v9.12.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/kovidgoyal/calibre/security/advisories/GHSA-5x64-w63v-x2g6"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/kovidgoyal/calibre/security/advisories/GHSA-5x64-w63v-x2g6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.12.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "calibre", "source": "cna", "vendor": "kovidgoyal"}, "product": "calibre", "vendor": "kovidgoyal"}], "created": "2026-08-12T12:15:04.480420+00:00", "updated": "2026-08-12T19:30:08.475307+00:00", "vendors": ["kovidgoyal", "kovidgoyal$PRODUCT$calibre"]}