CVE-2025-71382
MuPDF < 1.27.0-rc1 Stack Exhaustion DoS via EPUB CSS Rendering
Description
MuPDF before 1.27.0-rc1 contains an uncontrolled recursion vulnerability in the EPUB CSS rendering engine that allows remote attackers to cause a denial of service by supplying a maliciously crafted EPUB file with deeply nested HTML elements and inline CSS styles. The function value_from_inheritable_property() in css-apply.c recurses through the CSS property inheritance chain without a depth limit, exhausting the process stack and causing a crash in any application using MuPDF for EPUB rendering.
INFO
Published Date :
June 23, 2026, 6:17 p.m.
Last Modified :
July 14, 2026, 11:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update MuPDF to version 1.27.0-rc1 or later.
- Apply patches from the vendor if available.
- Avoid processing untrusted EPUB files.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-71382.
| URL | Resource |
|---|---|
| https://bugs.ghostscript.com/show_bug.cgi?id=708840 | Exploit Issue Tracking Mitigation |
| https://github.com/ArtifexSoftware/mupdf/commit/70b71ab22e6de4d4c44cd301c88231f623a4e94e | Patch |
| https://github.com/ArtifexSoftware/mupdf/releases/tag/1.27.0-rc1 | Release Notes |
| https://www.vulncheck.com/advisories/mupdf-rc1-stack-exhaustion-dos-via-epub-css-rendering | Patch Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-71382 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-71382
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-71382 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-71382 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Jul. 14, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://github.com/ArtifexSoftware/mupdf', 'vendor': 'ArtifexSoftware', 'product': 'mupdf', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.27.0-rc1', 'versionType': 'custom'}], 'defaultStatus': 'affected'}] [{'repo': 'https://github.com/ArtifexSoftware/mupdf', 'vendor': 'ArtifexSoftware', 'product': 'mupdf', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.27.0-rc1', 'versionType': 'custom'}], 'packageURL': 'pkg:github/ArtifexSoftware/mupdf', 'defaultStatus': 'affected'}] -
Initial Analysis by [email protected]
Jun. 26, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:artifex:mupdf:*:*:*:*:*:*:*:* versions up to (excluding) 1.27.0 Added Reference Type VulnCheck: https://bugs.ghostscript.com/show_bug.cgi?id=708840 Types: Exploit, Issue Tracking, Mitigation Added Reference Type VulnCheck: https://github.com/ArtifexSoftware/mupdf/commit/70b71ab22e6de4d4c44cd301c88231f623a4e94e Types: Patch Added Reference Type VulnCheck: https://github.com/ArtifexSoftware/mupdf/releases/tag/1.27.0-rc1 Types: Release Notes Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/mupdf-rc1-stack-exhaustion-dos-via-epub-css-rendering Types: Patch, Third Party Advisory -
New CVE Received by [email protected]
Jun. 23, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://github.com/ArtifexSoftware/mupdf', 'vendor': 'ArtifexSoftware', 'product': 'mupdf', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.27.0-rc1', 'versionType': 'custom'}], 'defaultStatus': 'affected'}] Added Description MuPDF before 1.27.0-rc1 contains an uncontrolled recursion vulnerability in the EPUB CSS rendering engine that allows remote attackers to cause a denial of service by supplying a maliciously crafted EPUB file with deeply nested HTML elements and inline CSS styles. The function value_from_inheritable_property() in css-apply.c recurses through the CSS property inheritance chain without a depth limit, exhausting the process stack and causing a crash in any application using MuPDF for EPUB rendering. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Added CWE CWE-674 Added Reference https://bugs.ghostscript.com/show_bug.cgi?id=708840 Added Reference https://github.com/ArtifexSoftware/mupdf/commit/70b71ab22e6de4d4c44cd301c88231f623a4e94e Added Reference https://github.com/ArtifexSoftware/mupdf/releases/tag/1.27.0-rc1 Added Reference https://www.vulncheck.com/advisories/mupdf-rc1-stack-exhaustion-dos-via-epub-css-rendering -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 23, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-71382', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-23T17:36:25.366763Z'}