Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
🐍
🐍 PyPI
Not in CISA KEV
HIGH severity

CVE-2024-28184 — weasyprint

HIGHFix: Kozea/WeasyPrint@734ee8e

CVE-2024-28184 is a high-severity (CVSS 7.4) CWE-829 vulnerability in weasyprint. A fix is available for weasyprint — see the affected versions and patch details below.

WeasyPrint allows the attachment of arbitrary files and URLs to a PDF

Also known asGHSA-35jj-wx47-4w8rPYSEC-2026-2033
Published
Mar 9, 2024
Updated
Aug 12, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 26, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-28184.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs48th percentile — riskier than 48% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2024-28184 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 379,842 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🐍weasyprint

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Impact

Since version 61.0, there's a vulnerability which allows attaching content of arbitrary files and URLs to a generated PDF document, even if url_fetcher is configured to prevent access to files and URLs.

Patches

Fixed by 734ee8e that’s included in 61.2

Workarounds

  • Check that no PDF attachment is defined in source HTML.
  • Launch WeasyPrint in a sandbox that prevents access to the filesystem and the network.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIweasyprint≥ 61.0&&< 61.261.2pip install --upgrade 'weasyprint==61.2'

Affected Products

2 products · 2 configurations
OS
fedorafedoraproject
1 version
40
Application
weasyprintkozea
≥ 61.0 && < 61.2
range

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for weasyprint, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update weasyprint to 61.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-28184 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### Impact Since version 61.0, there's a vulnerability which allows attaching content of arbitrary files and URLs to a generated PDF document, even if `url_fetcher` is configured to prevent access to files and URLs. ### Patches Fixed by 734ee8e that’s included in 61.2 ### Workarounds - Check that no PDF attachment is defined in source HTML. - Launch WeasyPrint in a sandbox that prevents access to the filesystem and the network.
O3 Security · Impact-Aware SCA

Is CVE-2024-28184 in your dependencies?

Find it across PyPI, including transitive dependencies.

CVE-2024-28184: weasyprint (High 7.4) | O3 Security