CVE catalog

CVE-2026-73249

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published: Aug 11, 2026, 9:58:43 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.44% · Oct 27, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	calibre	sid	`9.17.0+ds+~1.1.2-1`	fixed
Debian	calibre	forky	`9.17.0+ds+~1.1.2-1`	fixed
Debian	calibre	trixie	`8.5.0+ds-1+deb13u3`	vulnerable
Debian	calibre	bookworm	`6.13.0+repack-2+deb12u9`	vulnerable
Debian	calibre	bookworm-security	`6.13.0+repack-2+deb12u10`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	calibre	source	sid	`9.12.0+ds+~0.10.6-1`	not yet assigned	Not reported	Not reported
Debian	calibre	source	forky	`9.12.0+ds+~0.10.6-1`	not yet assigned	Not reported	Not reported
Debian	calibre	source	trixie	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	calibre	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported

Notes

[trixie] calibre: Minor issue [bookworm] calibre: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[calibre]Affected
Details (4)
- 6.13.0+repack-2+deb12u9 · all · bookworm
  Affected
  nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
- 6.13.0+repack-2+deb12u9 · all · bookworm
  Affected
  nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
- 6.13.0+repack-2+deb12u10 · all · bookworm-security
  Affected
  nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
- 6.13.0+repack-2+deb12u10 · all · bookworm-security
  Affected
  nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
[calibre-bin]Affected
Source package: [calibre]
Details (4)
- 6.13.0+repack-2+deb12u9 · amd64 · bookworm
  Affected
  nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
- 6.13.0+repack-2+deb12u9 · arm64 · bookworm
  Affected
  nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
- 6.13.0+repack-2+deb12u10 · amd64 · bookworm-security
  Affected
  nvd · calibre · debian · bookworm; nvd · calibre · debian · 12
- 6.13.0+repack-2+deb12u10 · arm64 · bookworm-security
  Affected
  nvd · calibre · debian · bookworm; nvd · calibre · debian · 12

[Debian 13 (Trixie)]

[calibre]Affected
Details (4)
- 8.5.0+ds-1+deb13u3 · all · trixie
  Affected
  nvd · calibre · debian · 13
- 8.5.0+ds-1+deb13u3 · all · trixie
  Affected
  nvd · calibre · debian · 13
- 8.16.2+ds+~0.10.5-3~bpo13+1 · all · trixie-backports
  Affected
  nvd · calibre · debian · 13
- 8.16.2+ds+~0.10.5-3~bpo13+1 · all · trixie-backports
  Affected
  nvd · calibre · debian · 13
[calibre-bin]Affected
Source package: [calibre]
Details (4)
- 8.5.0+ds-1+deb13u3 · amd64 · trixie
  Affected
  nvd · calibre · debian · 13
- 8.5.0+ds-1+deb13u3 · arm64 · trixie
  Affected
  nvd · calibre · debian · 13
- 8.16.2+ds+~0.10.5-3~bpo13+1 · amd64 · trixie-backports
  Affected
  nvd · calibre · debian · 13
- 8.16.2+ds+~0.10.5-3~bpo13+1 · arm64 · trixie-backports
  Affected
  nvd · calibre · debian · 13

Observed: Oct 25, 2026, 7:23:59 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]