How severe is CVE-2026-30935?

CVE-2026-30935 has a CVSS score of 4.4/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2026-30935?

CVE-2026-30935 affects the following packages: Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-HDRI-AnyCPU (NuGet), Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet), Magick.NET-Q16-HDRI-arm64 (NuGet), Magick.NET-Q16-HDRI-x64 (NuGet), Magick.NET-Q16-HDRI-x86 (NuGet), Magick.NET-Q16-OpenMP-arm64 (NuGet), Magick.NET-Q16-OpenMP-x64 (NuGet), and 11 more. Ecosystems affected: NuGet.

How do I fix CVE-2026-30935?

Update Magick.NET-Q16-AnyCPU to 14.10.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-30935 is resolved across your whole dependency graph.

How do I detect CVE-2026-30935 in my NuGet dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-AnyCPU, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2026-30935 if there is no patch (or I can't update yet)?

Stop feeding it untrusted input: reject or quarantine files and payloads from unverified sources until you can upgrade, restrict accepted formats to the ones you actually need, and run the parsing or decoding step in a least-privileged sandbox or short-lived worker so a crash or corrupted read cannot reach the rest of the process.

Is CVE-2026-30935 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-30935 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 is the EPSS score for CVE-2026-30935?

CVE-2026-30935 has an EPSS (Exploit Prediction Scoring System) score of 0.1%, placing it in the 2th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2026-30935?

CVE-2026-30935 is classified as Out-of-bounds Read (CWE-125), CWE-190 (CWE-190). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-30935 published, and has it been updated?

CVE-2026-30935 was published on March 9, 2026 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

.NET

.NET NuGet

Not in CISA KEV

MEDIUM severity

CVE-2026-30935 — Magick.NET-Q16-AnyCPU

MEDIUM

CVE-2026-30935 is a medium-severity (CVSS 4.4) Out-of-bounds Read vulnerability in Magick.NET-Q16-AnyCPU. A fix is available for Magick.NET-Q16-AnyCPU — see the affected versions and patch details below.

ImageMagick has a heap Buffer Over-Read in BilateralBlurImage

Also known asGHSA-cqw9-w2m7-r2m2

Published

Mar 9, 2026

Updated

Oct 28, 2026

Affected

19 pkgs

Patched

19 / 19

Exploits

None indexed

Exploitation data as of Nov 10, 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-2026-30935.

EPSS Exploitation Probability

via FIRST.org ↗

0.1%probability of exploitation in next 30 days

Lower Risk+0.01%

Lower risk than most CVEs2th percentile — riskier than 2% of all scored CVEsHighest risk

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

19 pkgs affected

.NETMagick.NET-Q16-AnyCPU.NETMagick.NET-Q16-HDRI-AnyCPU.NETMagick.NET-Q16-HDRI-OpenMP-arm64.NETMagick.NET-Q16-HDRI-arm64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-OpenMP-arm64.NETMagick.NET-Q16-OpenMP-x64+11 more

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

Description

BilateralBlurImage contains a heap buffer over-read caused by an incorrect conversion. When processing a crafted image with the -bilateral-blur operation an out of bounds read can occur.

=================================================================
==676172==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x50a0000079c0 at pc 0x57b483c722f7 bp 0x7fffc0acd380 sp 0x7fffc0acd370
READ of size 4 at 0x50a0000079c0 thread T0

Affected Packages

19 total 19 fixed

Ecosystem	Package	Vulnerable range	Fix
.NETNuGet	`Magick.NET-Q16-AnyCPU`	all versions	14.10.4`dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.4`
.NETNuGet	`Magick.NET-Q16-HDRI-AnyCPU`	all versions	14.10.4`dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.4`
.NETNuGet	`Magick.NET-Q16-HDRI-OpenMP-arm64`	all versions	14.10.4`dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.4`
.NETNuGet	`Magick.NET-Q16-HDRI-arm64`	all versions	14.10.4`dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.4`
.NETNuGet	`Magick.NET-Q16-HDRI-x64`	all versions	14.10.4`dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.4`
.NETNuGet	`Magick.NET-Q16-HDRI-x86`	all versions	14.10.4`dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.4`

Affected Products

1 product · 1 configurations

Application

imagemagickimagemagick

< 7.1.2-16

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-AnyCPU, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update Magick.NET-Q16-AnyCPU to 14.10.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-30935 is resolved across your whole dependency graph.
Workarounds
Stop feeding it untrusted input: reject or quarantine files and payloads from unverified sources until you can upgrade, restrict accepted formats to the ones you actually need, and run the parsing or decoding step in a least-privileged sandbox or short-lived worker so a crash or corrupted read cannot reach the rest of the process.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

To exploit this flaw, an attacker needs to convince a user to process a specially crafted image with the -bilateral-blur operation. Additionally, this issue can cause a heap-based buffer over-read of only 4 bytes, limiting the security impact to a denial of service. Due to these reasons, this vulnerability has been…

Workaround published by Red Hat

To reduce the risk of exploitation, avoid processing untrusted image files using the -bilateral-blur operation with ImageMagick. If ImageMagick is deployed in a way that it processes files from untrusted sources automatically, consider running the application inside a container or a restricted sandbox environment to limit the potential security impact.

Source: Red Hat security advisory for CVE-2026-30935 (CC BY 4.0)

Frequently Asked Questions

BilateralBlurImage contains a heap buffer over-read caused by an incorrect conversion. When processing a crafted image with the `-bilateral-blur` operation an out of bounds read can occur. ``` ================================================================= ==676172==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x50a0000079c0 at pc 0x57b483c722f7 bp 0x7fffc0acd380 sp 0x7fffc0acd370 READ of size 4 at 0x50a0000079c0 thread T0 ```

O3 Security · Impact-Aware SCA

Is CVE-2026-30935 in your dependencies?

Find it across NuGet, including transitive dependencies.

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CVSS Score

4.4/10CVSS v3 base

Vector breakdown

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Raw vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

CWE Classification

CWE-125Out-of-bounds Read CWE-190CWE-190

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

Timeline

Disclosed

Mar 9, 2026

Last updated

Oct 28, 2026

Identifiers

CVE-2026-30935

GHSA-cqw9-w2m7-r2m2

References

Advisorygithub.com · CVE 2026 30935.json Advisorygithub.com · GHSA cqw9 w2m7 r2m2 Advisorynvd.nist.gov · CVE 2026 30935 Webgithub.com · 14.10.4 Packagegithub.com · ImageMagick

Related vulnerabilities

This CVE is medium severity; 3 of 8 other CVEs affecting Magick.NET-Q16-AnyCPU are rated as high or higher (top: moderate).

GHSA-cvhv-g4rq-3hmwCVE-2026-53466CVE-2026-62363GHSA-56m6-8q75-f2rwGHSA-6jwg-7q3p-5fqmGHSA-6vxp-gfwf-hcr9GHSA-76q6-2p6h-xjqrGHSA-7c7m-fpjw-gwcq

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 28, 2026