ImageMagick's Security Policy Bypass through config/policy-secure.xml via "fd handler" leads to stdin/stdout access
Priority LOW 33CWE-284Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-284.
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. The shipped "secure" security policy includes a rule intended to prevent reading/writing from standard streams. However, ImageMagick also supports fd:<n> pseudo-filenames (e.g., fd:0, fd:1). Prior to versions 7.1.2-15 and 6.9.13-40, this path form is not blocked by the secure policy templates, and therefore bypasses the protection goal of "no stdin/stdout." Versions 7.1.2-15 and 6.9.13-40 contain a patch by including a change to the more secure policies by default. As a workaround, add the change to one's security policy manually.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00153 4th percentileScored 2026-11-07
Fix Partial ImageMagick (ImageMagick): 7.1.2-15, 6.9.13-40Magick.NET-Q16-AnyCPU (NuGet): 14.10.3+16 more productsRed Hat: 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ImageMagick | ImageMagick | 7.0.0 to before 7.1.2-15; before 6.9.13-40 | 7.1.2-15, 6.9.13-40 | Patch available | CNA |
| — | Magick.NET-Q16-AnyCPU (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-HDRI-AnyCPU (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-HDRI-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-HDRI-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-HDRI-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-OpenMP-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-OpenMP-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-OpenMP-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q16-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-QMagick.NET-Q16-x8616-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q8-AnyCPU (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q8-OpenMP-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q8-OpenMP-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q8-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
| — | Magick.NET-Q8-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-xwc6-v6g8-pw2h |
- ImageMagick VendorImageMagick Affected 7.0.0 to before 7.1.2-15; before 6.9.13-40 Fixed in 7.1.2-15, 6.9.13-40 Patch available CNA
- Magick.NET-Q16-AnyCPU (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-HDRI-AnyCPU (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-HDRI-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-HDRI-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-HDRI-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-OpenMP-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-OpenMP-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-OpenMP-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q16-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-QMagick.NET-Q16-x8616-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q8-AnyCPU (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q8-OpenMP-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q8-OpenMP-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q8-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
- Magick.NET-Q8-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-xwc6-v6g8-pw2h
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* | before 6.9.13-40; 7.0.0-0 to before 7.1.2-15 | Vulnerable | ImageMagick |
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* Versions before 6.9.13-40; 7.0.0-0 to before 7.1.2-15 Vulnerable ·ImageMagick
Remediation
- Fix · CNA ImageMagick (ImageMagick) Fixed in 7.1.2-15, 6.9.13-40
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-AnyCPU (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-HDRI-AnyCPU (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-HDRI-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-HDRI-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-HDRI-x86 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-OpenMP-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-OpenMP-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-OpenMP-x86 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q16-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-QMagick.NET-Q16-x8616-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q8-AnyCPU (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q8-OpenMP-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q8-OpenMP-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q8-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-xwc6-v6g8-pw2h Magick.NET-Q8-x86 (NuGet) Fixed in 14.10.3 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-25966
- 2026-10-03 Alias added: GHSA-xwc6-v6g8-pw2h
References
Advisory 2
More Imagemagick vulnerabilities
- TI-2016-03144 The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT… KEVCVSS 3.1HIGH 8.4
- TI-2023-16996 Improper input validation in ImageMagick CVSS 3.1CRITICAL 9.8
- TI-2016-03148 The (1) HTTP and (2) FTP coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1… KEVCVSS 3.1MEDIUM 5.5
- TI-2016-03145 The EPHEMERAL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote… KEVCVSS 3.1MEDIUM 5.5
- TI-2025-35690 ImageMagick BlobStream Forward-Seek Under-Allocation CVSS 3.1CRITICAL 9.8
- TI-2025-33094 ImageMagick has Stack Buffer Overflow in image.c CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-25966 · CVE Program
- CVE-2026-25966 · NVD
- FIRST EPSS
- GHSA-xwc6-v6g8-pw2h · GitHub Advisory Database · CC BY 4.0
- CVE-2026-25966 · Red Hat security data · CC BY 4.0
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