CVE-2018-7889

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-03-08 · updated 2026-06-17
Weakness: CWE-502

Description

gui2/viewer/bookmarkmanager.py in Calibre 3.18 calls cPickle.load on imported bookmark data, which allows remote attackers to execute arbitrary code via a crafted .pickle file, as demonstrated by Python code that contains an os.system call.

Affected products

kovidgoyal calibre: 3.18.0

References

https://bugs.launchpad.net/calibre/+bug/1753870
https://github.com/kovidgoyal/calibre/commit/aeb5b036a0bf657951756688b3c72bd68b6e4a7d
https://bugs.launchpad.net/calibre/+bug/1753870
https://github.com/kovidgoyal/calibre/commit/aeb5b036a0bf657951756688b3c72bd68b6e4a7d

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