ImageMagick Security Policy Bypass via Coder Domain
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-863.
Summary
ImageMagick before 6.9.13-56 and before 7.1.2-31 in the 7.x line allows a security policy bypass when a policy uses coder, rather than module, as its domain. An attacker can supply a crafted image to evade coder-based policy restrictions, so ImageMagick processes formats the administrator meant to block. The CNA rates this MEDIUM with CVSS 4.0 base score 6.9, and CWE-863 (Incorrect Authorization) applies. Red Hat rates it Moderate; Red Hat Enterprise Linux 6 has no fix planned and Red Hat Enterprise Linux 7 has no fix available.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
ImageMagick before 6.9.13-56 and 7.x before 7.1.2-31 allows a security policy bypass when a policy uses coder, rather than module, as its domain. An attacker can supply a crafted image to evade coder-based policy restrictions, causing ImageMagick to process formats the administrator intended to block.
Why it matters now
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 | before 7.1.2-31 | 7.1.2-31 | Patch available | CNA |
| ImageMagick | ImageMagick | before 6.9.13-56 | 6.9.13-56 | Patch available | CNA |
- ImageMagick VendorImageMagick Affected before 7.1.2-31 Fixed in 7.1.2-31 Patch available CNA
- ImageMagick VendorImageMagick Affected before 6.9.13-56 Fixed in 6.9.13-56 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* | — | — | ImageMagick |
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* Versions — — ·ImageMagick
Remediation
Upgrade ImageMagick 6.x to 6.9.13-56 or later, and ImageMagick 7.x to 7.1.2-31 or later. Red Hat Enterprise Linux 6 and 7 have no fix, so restrict or remove coder-based policy rules on those systems until a fix is available.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA ImageMagick (ImageMagick) Fixed in 7.1.2-31
- Fix · CNA ImageMagick (ImageMagick) Fixed in 6.9.13-56
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
ImageMagick 7.1.2-31
9 records Highest priority Priority LOW 9 LOW
Other records, highest priority first
- TI-2026-69522 Resource leak in ImageMagick magick script handlingPriority LOW 36
- TI-2026-69521 ImageMagick Denial of Service via MVG DecoderPriority LOW 36
- TI-2026-69527 Invalid memory free in ImageMagick MVG decoder crashes applicationPriority LOW 35
- Release ·
ImageMagick 6.9.13-56
5 records Highest priority Priority LOW 5 LOW
Other records, highest priority first
- TI-2026-69521 ImageMagick Denial of Service via MVG DecoderPriority LOW 36
- TI-2026-69527 Invalid memory free in ImageMagick MVG decoder crashes applicationPriority LOW 35
- TI-2026-69526 Code injection in ImageMagick PostScript codersPriority LOW 26
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 yet: Fix deferred |
Timeline
- 2026-10-08 Threatist record created from CVE-2026-105403
- 2026-10-08 Alias added: GHSA-78ww-3q48-4x48
- 2026-10-08 CISA SSVC decision points changed
- 2026-10-08 Priority changed: MEDIUM → LOW
- 2026-10-09 Affected versions changed · Red Hat
- 2026-10-09 CVSS score added · Red Hat
References
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-2026-105403 · CVE Program
- CVE-2026-105403 · NVD
- FIRST EPSS
- GHSA-78ww-3q48-4x48 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-105403 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences