CVE-2023-46303: calibre
Affects calibreSource CVE Database V5
Not known to be exploited : upgrade to 6.19.0 when convenient.
Data as of 26 Oct 2026, 10:12 UTC
Rated Medium by the CNA (mitre) · No CVSS score from NVD or the CNA
- EPSS
- 1.6% chance of exploitation in 30 days – higher than 76% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.19.0
Exploitation evidence
Disclosed: evidence found.
CVE published 22 Oct 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade calibre to 6.19.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
PyPIcalibrepkg:pypi/calibreOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade calibre to version 6.19.0 or later, where this vulnerability has been fixed. No other specific mitigations are indicated.
Description
A vulnerability in calibre before version 6.19.0 allows the link_to_local_path function in ebooks/conversion/plugins/html_input.py to add resources outside of the document root by default. This could lead to unintended resource inclusion during ebook conversion.