GHSA-qv2q-c278-pch5 CVE-2026-56369
ImageMagick: Information Disclosure in PasskeyEncipherImage via AES-CTR nonce reuse
Medium
NuGet
- Severity
- 6.3 / 10
- Medium · CVSS 4.0
- Exploit chance (EPSS)
- 0.23%
- Chance of exploitation in the next 30 days. Higher than 13.81% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Fix
- Available
- 17 packages have a fixed version
Description
The PasskeyEncipherImage method is vulnerable to information disclosure via AES-CTR nonce reuse. ImageMagick has update the documentation on its website to make it more clear that this is happening: https://imagemagick.org/cipher/
Affected versions
NuGet
| Package | Vulnerable | Fixed in |
|---|---|---|
| Magick.NET-Q16-AnyCPU | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-HDRI-AnyCPU | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-HDRI-OpenMP-arm64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-HDRI-arm64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-HDRI-x64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-HDRI-x86 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-OpenMP-arm64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-OpenMP-x64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-arm64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-x64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q16-x86 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q8-AnyCPU | < 14.12.0 |
14.12.0 |
| Magick.NET-Q8-OpenMP-arm64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q8-OpenMP-x64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q8-arm64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q8-x64 | < 14.12.0 |
14.12.0 |
| Magick.NET-Q8-x86 | < 14.12.0 |
14.12.0 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
Magick.NET-Q16-AnyCPU NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-AnyCPU --version 14.12.0
Magick.NET-Q16-HDRI-AnyCPU NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.12.0
Magick.NET-Q16-HDRI-OpenMP-arm64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.12.0
Magick.NET-Q16-HDRI-arm64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.12.0
Magick.NET-Q16-HDRI-x64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.12.0
Magick.NET-Q16-HDRI-x86 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.12.0
Magick.NET-Q16-OpenMP-arm64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.12.0
Magick.NET-Q16-OpenMP-x64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.12.0
Magick.NET-Q16-arm64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-arm64 --version 14.12.0
Magick.NET-Q16-x64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-x64 --version 14.12.0
Magick.NET-Q16-x86 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q16-x86 --version 14.12.0
Magick.NET-Q8-AnyCPU NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q8-AnyCPU --version 14.12.0
Magick.NET-Q8-OpenMP-arm64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.12.0
Magick.NET-Q8-OpenMP-x64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.12.0
Magick.NET-Q8-arm64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q8-arm64 --version 14.12.0
Magick.NET-Q8-x64 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q8-x64 --version 14.12.0
Magick.NET-Q8-x86 NuGet → 14.12.0
- dotnet
dotnet add package Magick.NET-Q8-x86 --version 14.12.0
Severity breakdown
CVSS 4.0 6.3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Attack vector
- Network
- Attack complexity
- High
- Attack requirements
- Present
- Privileges required
- None
- User interaction
- None
- Confidentiality (vulnerable system)
- Low
- Integrity (vulnerable system)
- None
- Availability (vulnerable system)
- None
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- None
- Availability (subsequent systems)
- None
- Exploit maturity
- Not defined
- Scope
- X
CVSS 3.1 3.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Weakness
CWE-323: Reusing a Nonce, Key Pair in Encryption
Nonces should be used for the present occasion and only once.
How to prevent it
- Implementation: Refuse to reuse nonce values.
- Implementation: Use techniques such as requiring incrementing, time based and/or challenge response to assure uniqueness of nonces.
CWE-330: Use of Insufficiently Random Values
The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.
How to prevent it
- Architecture and Design: Use a well-vetted algorithm that is currently considered to be strong by experts in the field, and select well-tested implementations with adequate length seeds. In general, if a pseudo-random number generator is not advertised as being cryptographically secure, then it is probably a statistical PRNG and should not be used in security-sensitive contexts. Pseudo-random number generators can produce predictable numbers if the generator is known and the seed can be guessed. A 256-bit seed is a good starting point for producing a "random enough" number.
- Implementation: Consider a PRNG that re-seeds itself as needed from high quality pseudo-random output sources, such as hardware devices.
- Architecture and Design, Requirements: Use products or modules that conform to FIPS 140-2 [REF-267] to avoid obvious entropy problems. Consult FIPS 140-2 Annex C ("Approved Random Number Generators").
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-j7hp-h8jx-5ppr libwebp: OOB write in BuildHuffmanTable | High Known exploited | Also affects magick.net-q16-anycpu |
| GHSA-cvhv-g4rq-3hmw ImageMagick: Memory Leak when providing invalid options to the cli | Medium | Also affects Magick.NET-Q16-AnyCPU |
| GHSA-h22j-f9xw-xjjm ImageMagick: Integer Overflow in JNX decoder causes heap buffer over-write when processing extremly large files on 32-bit builds | Medium | Also affects Magick.NET-Q16-AnyCPU |
| GHSA-422r-8c97-xcg4 ImageMagick: Heap Buffer Over-Write in fx operation | Medium | Also affects Magick.NET-Q16-AnyCPU |
| GHSA-f5m7-cqgw-8hm7 ImageMagick: Heap Buffer Over-Write in morphology operation when an invalid kernel is provided | Medium | Also affects Magick.NET-Q16-AnyCPU |
| GHSA-hc76-7mpc-qjqh ImageMagick: Code injection in HTML encoder due to incomplete fix of CVE-2026-25797 | Medium | Also affects Magick.NET-Q16-AnyCPU |
| GHSA-56m6-8q75-f2rw ImageMagick: Policy Bypass due to an incomplete fix of CVE-2026-49219 | Medium | Also affects Magick.NET-Q16-AnyCPU |
| GHSA-h5r4-w88w-7ccr ImageMagick: Memory Leak in TIFF encoder when invalid tiff:tile-geometry is specified | Low | Also affects Magick.NET-Q16-AnyCPU |
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