HIGHpublic-safe

CVE-2026-73248

NVD: calibre is an e-book manager. NVD: Prior to 9.12.0, calibre processes attacker-controlled composite_template metadata from a malicious EPUB, OPF, PDF, or similar file through program: and a nested template() call whose formatter does not inherit allow_python_templates=False, allowing a nested... NVD: This issue is fixed in version 9.12.0.

CVSS
8.5 Severity
HIGH EPSS
0.0015 (5) KEV
-

Source-published summary

Possible impact

Source describes code execution review. Possible impact: An attacker may be able to run code or commands on affected systems.

Affected context

Affected product or version requires source confirmation.

Remediation / advisory

Patch confirmed by source text; fixed version context: version.

Why it matters

Source describes code execution review. Possible impact: An attacker may be able to run code or commands on affected systems.; CVSS 8.5 (HIGH); EPSS percentile 5; not listed in KEV; Patch confirmed by source text; fixed version context: version; sources: NVD, OSV.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

exposure unknown

Impact tags

code execution review

Urgency reasons

CVSS HIGHvendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV description; unsafe procedural detail is not shown.

Redaction metadata

source summary used: True
fallback summary used: False
unsafe procedural detail present: false
raw source displayed: false
public summary redacted: true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Handoff JSON Handoff Markdown Safe Codex prompt

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.