How severe is CVE-2026-42057?

CVE-2026-42057 has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2026-42057?

Affected package information for CVE-2026-42057 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2026-42057?

No fixed release is recorded for CVE-2026-42057 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

How do I detect CVE-2026-42057 in my code and dependencies?

Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

How do I mitigate CVE-2026-42057 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is CVE-2026-42057 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-42057 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What type of vulnerability is CVE-2026-42057?

CVE-2026-42057 is classified as CWE-825 (CWE-825). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-42057 published, and has it been updated?

CVE-2026-42057 was published on October 29, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🛡️

Not in CISA KEV

HIGH severity

CVE-2026-42057

HIGH

CVE-2026-42057 is a high-severity (CVSS 7.5) CWE-825 vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

An invalid pointer dereference vulnerability exists in the vtkPNGReader::vtkPNGReaderUpdate2 functionality of vtk 9.6. A specially crafted .png file can lead to a denial of service.…

Published

Oct 29, 2026

Updated

Oct 29, 2026

Affected

—

Patched

—

Exploits

None indexed

Exploitation data as of Oct 29, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

An invalid pointer dereference vulnerability exists in the vtkPNGReader::vtkPNGReaderUpdate2 functionality of vtk 9.6. A specially crafted .png file can lead to a denial of service. An attacker can provide a malicious file to trigger this vulnerability.

Detection & mitigation playbook

Vulnerability

Detect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Remediation status
No fixed release is recorded for CVE-2026-42057 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.
Mitigate without a patch
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

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CVE-2026-42057

Description

Detection & mitigation playbook

Detect

Remediation status

Mitigate without a patch

Frequently Asked Questions

Is CVE-2026-42057 in your dependencies?