Out-of-bounds Write in SixLabors ImageSharp
Priority MEDIUM 40CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-787 and the CVSS impact.
Summary
ImageSharp is a 2D graphics API. An Out-of-bounds Write vulnerability has been found in the ImageSharp gif decoder, allowing attackers to cause a crash using a specially crafted gif. This can potentially lead to denial of service. All users are advised to upgrade to v3.1.5 or v2.1.9.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00669 52nd percentileScored 2026-11-07
Fix Fixed ImageSharp (SixLabors): 2.1.9, 3.1.5SixLabors.ImageSharp (NuGet): 2.1.9, 3.1.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| SixLabors | ImageSharp | before 2.1.9; 3.0.0 to before 3.1.5 | 2.1.9, 3.1.5 | Patch available | CNA |
| — | SixLabors.ImageSharp (NuGet) | before 2.1.9 | 2.1.9 | Patch available | GHSA-63p8-c4ww-9cg7 |
| — | SixLabors.ImageSharp (NuGet) | 3.0.0 to before 3.1.5 | 3.1.5 | Patch available | GHSA-63p8-c4ww-9cg7 |
- ImageSharp VendorSixLabors Affected before 2.1.9; 3.0.0 to before 3.1.5 Fixed in 2.1.9, 3.1.5 Patch available CNA
- SixLabors.ImageSharp (NuGet) Vendor— Affected before 2.1.9 Fixed in 2.1.9 Patch available GHSA-63p8-c4ww-9cg7
- SixLabors.ImageSharp (NuGet) Vendor— Affected 3.0.0 to before 3.1.5 Fixed in 3.1.5 Patch available GHSA-63p8-c4ww-9cg7
Remediation
- Fix · CNA ImageSharp (SixLabors) Fixed in 2.1.9, 3.1.5
- Fix · GHSA-63p8-c4ww-9cg7 SixLabors.ImageSharp (NuGet) Fixed in 2.1.9 Advisory →
- Fix · GHSA-63p8-c4ww-9cg7 SixLabors.ImageSharp (NuGet) Fixed in 3.1.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-41131
- 2026-10-03 Alias added: GHSA-63p8-c4ww-9cg7
References
Patch 2
Advisory 2
More SixLabors Imagesharp vulnerabilities
- TI-2026-68636 Out-of-bounds write in ImageSharp CCITT fax decompression CVSS 3.1HIGH 7.5
- TI-2026-68634 Out-of-bounds write in ImageSharp TIFF CCITT Group 4 encoder CVSS 3.1HIGH 7.5
- TI-2026-68629 Out-of-bounds write in ImageSharp TIFF CCITT encoder CVSS 3.1HIGH 7.5
- TI-2025-20408 Out-of-bounds Write in SixLabors ImageSharp CVSS 3.1HIGH 7.5
- TI-2026-68635 ImageSharp BigTIFF IFD count can keep a decoder thread in a non-progressing loop CVSS 3.1MEDIUM 5.3
- TI-2026-68633 Excessive memory allocation in ImageSharp ICC CLUT parsing CVSS 3.1MEDIUM 5.3
Sources
- CVE-2024-41131 · CVE Program
- CVE-2024-41131 · NVD
- FIRST EPSS
- GHSA-63p8-c4ww-9cg7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences