Bug 2498951 - CVE-2026-53511 calibre: Calibre: Arbitrary code execution via malicious e-book file processing [fedora-all]
Summary: CVE-2026-53511 calibre: Calibre: Arbitrary code execution via malicious e-boo...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: calibre
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Kevin Fenzi
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["f89ac2c5-f3a7-449a-ad05-f...
Depends On:
Blocks: CVE-2026-53511
TreeView+ depends on / blocked
 
Reported: 2026-07-10 09:47 UTC by Dhananjay Arunesh
Modified: 2026-07-14 01:23 UTC (History)
5 users (show)

Fixed In Version: calibre-9.11.0-1.fc44 calibre-9.11.0-1.fc43
Clone Of:
Environment:
Last Closed: 2026-07-14 01:00:25 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Dhananjay Arunesh 2026-07-10 09:47:10 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

calibre is an e-book manager. Prior to 9.10.0, a malicious EPUB, OPF, or PDF file can execute arbitrary Python code when its metadata is read by calibre, including through Add books or Edit books, by embedding a custom column definition with a python: template in calibre:user_metadata that is passed unsanitized to exec() in the template formatter. This issue is fixed in version 9.10.0.

Comment 1 Kevin Fenzi (rh) 2026-07-12 17:51:07 UTC
Rawhide has 9.11.0, so not affected.

Will see about updating f44/f43.

Comment 2 Fedora Update System 2026-07-12 20:04:20 UTC
FEDORA-2026-79a5573be3 (calibre-9.11.0-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-79a5573be3

Comment 3 Fedora Update System 2026-07-12 20:41:41 UTC
FEDORA-2026-6776f4e492 (calibre-9.11.0-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-6776f4e492

Comment 4 Fedora Update System 2026-07-13 00:48:26 UTC
FEDORA-2026-6776f4e492 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-6776f4e492`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-6776f4e492

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-07-13 01:27:38 UTC
FEDORA-2026-79a5573be3 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-79a5573be3`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-79a5573be3

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-07-14 01:00:25 UTC
FEDORA-2026-79a5573be3 (calibre-9.11.0-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 7 Fedora Update System 2026-07-14 01:23:51 UTC
FEDORA-2026-6776f4e492 (calibre-9.11.0-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.


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