CVE-2026-27625: Stirling-PDF is a locally hosted web application that performs various operations on PDF files

Q: How do I fix CVE-2026-27625?

stirling pdf: upgrade to 2.5.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-27625 being exploited?

CVE-2026-27625 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-27625 affect?

CVE-2026-27625 affects stirling pdf. Severity is high (CVSS 8.1). Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf endpoint extracts user-supplied ZIP entries without path checks. Any authenticated

Q: How urgent is CVE-2026-27625?

Priority 43/100. High severity; Public exploit reference

This month

HIGH 8.1UPGRADE

CVE-2026-27625 is a high-severity flaw (CVSS 8.1) affecting stirling pdf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf endpoint extracts user-supplied ZIP entries without path checks. Any authenticated user can write files outside the intended temporary working directory, leading to arbitrary file write with the privileges of the Stirling-PDF process user (stirlingpdfuser). This can overwrite writable files a

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-22, CWE-23
Published	2026-03-20
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: stirling

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-20 09:16 UTCPublished CVE record published
2026-06-17 10:27 UTCUpdated Record last modified

stirling stirling pdf UPGRADE

Affected: < 2.5.2

Fixed in: 2.5.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy stirling-pdf || rpm -q stirling-pdf || stirling-pdf --version

2. UPGRADE to 2.5.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade stirling-pdf

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stirling-pdf

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-27625?

stirling pdf: upgrade to 2.5.2. Exact commands for each OS are on this page.

Is CVE-2026-27625 being exploited?

CVE-2026-27625 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-27625 affect?

CVE-2026-27625 affects stirling pdf. Severity is high (CVSS 8.1). Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf endpoint extracts user-supplied ZIP entries without path checks. Any authenticated

How urgent is CVE-2026-27625?

Priority 43/100. High severity; Public exploit reference

Related CVEs

CVE-2026-33436 LOW 3.1 UPGRADE Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files
CVE-2026-41580 MEDIUM 6.1 UPGRADE Stirling-PDF is a locally hosted web application that facilitates various operations on PDF files
CVE-2026-34071 MEDIUM 5.4 DOWNGRADE Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files
CVE-2026-33438 MEDIUM 6.5 UPGRADE Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files

References

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