CVE-2026-33205

unknown

Published — · Modified —

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a Server-Side Request Forgery vulnerability in the background-image endpoint of calibre e-book reader's web view allows an attacker to perform blind GET requests to arbitrary URLs and exfiltrate information out from the ebook sandbox. Version 9.6.0 patches the issue.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-33205 NameCVE-2026-33205 Descriptioncalibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a Server-Side Request Forgery vulnerability in the background-image endpoint of calibre e-book reader's web view allows an attacker to perform blind GET requests to arbitrary URLs and exfiltrate information out from the ebook…

CVE-2026-33205

Name	CVE-2026-33205
Description	calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.6.0, a Server-Side Request Forgery vulnerability in the background-image endpoint of calibre e-book reader's web view allows an attacker to perform blind GET requests to arbitrary URLs and exfiltrate information out from the ebook sandbox. Version 9.6.0 patches the issue.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
calibre (PTS)	bullseye	5.12.0+dfsg-1+deb11u2	vulnerable
	bullseye (security)	5.12.0+dfsg-1+deb11u4	vulnerable
	bookworm	6.13.0+repack-2+deb12u6	vulnerable
	trixie	8.5.0+ds-1+deb13u2	vulnerable
	forky, sid	9.8.0+ds+~0.10.6-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
calibre	source	(unstable)	9.6.0+ds+~0.10.5-1

Notes

[trixie] - calibre <no-dsa> (Minor issue)
[bookworm] - calibre <no-dsa> (Minor issue)
https://github.com/kovidgoyal/calibre/security/advisories/GHSA-4926-v9px-wv7v

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

[trixie] - calibre <no-dsa> (Minor issue)[bookworm] - calibre <no-dsa> (Minor issue)https://github.com/kovidgoyal/calibre/security/advisories/GHSA-4926-v9px-wv7v

OS impact

OS	Version	Status	Fixed in
debian	bookworm	affected
debian	bullseye	affected
debian	forky	fixed	`9.6.0+ds+~0.10.5-1`
debian	sid	fixed	`9.6.0+ds+~0.10.5-1`
debian	trixie	affected

References

https://security-tracker.debian.org/tracker/CVE-2026-33205

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.