CVE-2025-56590: An issue was discovered in the InsertFromURL() function of the Apryse HTML2PDF SDK thru 11.10

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2025-56590 is a critical-severity flaw (CVSS 9.8) affecting html2pdf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in the InsertFromURL() function of the Apryse HTML2PDF SDK thru 11.10. This vulnerability could allow an attacker to execute arbitrary operating system commands on the local server.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-01-22
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: apryse

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-22 18:16 UTCPublished CVE record published
2026-07-05 02:17 UTCUpdated Record last modified

apryse html2pdf DOWNGRADE

Affected: 11.5.0 · 11.7.0 · 11.10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.5.0

1. Check installed version

apt-cache policy html2pdf || rpm -q html2pdf || html2pdf --version

2. No fixed release: DOWNGRADE to a release before 11.5.0 (Debian / Ubuntu)

apt-cache madison html2pdf sudo apt install html2pdf=<VERSION_BEFORE_11.5.0> sudo apt-mark hold html2pdf

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list html2pdf sudo dnf downgrade html2pdf-<VERSION_BEFORE_11.5.0> sudo dnf versionlock add html2pdf

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora ELN · fwupd-efi · FIXED · 1.9-3.eln159 · FEDORA-2026-44fd42db42 · source

sudo dnf upgrade --advisory=FEDORA-2026-44fd42db42

Fedora 46 · crest · FIXED · 3.0.2-1.fc46 · FEDORA-2026-b49adefa8f · source

sudo dnf upgrade --advisory=FEDORA-2026-b49adefa8f

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-2025-56590?

html2pdf: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-56590 being exploited?

CVE-2025-56590 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-2025-56590 affect?

CVE-2025-56590 affects html2pdf. Severity is critical (CVSS 9.8). An issue was discovered in the InsertFromURL() function of the Apryse HTML2PDF SDK thru 11.10. This vulnerability could allow an attacker to execute arbitrary operating system commands on the local server.

How urgent is CVE-2025-56590?

Priority 59/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-56589 HIGH 7.5 UPGRADE A Local File Inclusion (LFI) and a Server-Side Request Forgery (SSRF) vulnerability was found in the InsertFro

References

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