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TI-2024-27483 Aliases CVE-2024-41131GHSA-63p8-c4ww-9cg7

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

VendorProductAffected versionsFixed inStatusSource
SixLaborsImageSharpbefore 2.1.9; 3.0.0 to before 3.1.52.1.9, 3.1.5Patch availableCNA
—SixLabors.ImageSharp (NuGet)before 2.1.92.1.9Patch availableGHSA-63p8-c4ww-9cg7
—SixLabors.ImageSharp (NuGet)3.0.0 to before 3.1.53.1.5Patch availableGHSA-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

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sixlabors:imagesharp:*:*:*:*:*:*:*:*2.1.0 to before 2.1.9; 3.1.0 to before 3.1.5VulnerableSixLabors
  • cpe:2.3:a:sixlabors:imagesharp:*:*:*:*:*:*:*:* Versions 2.1.0 to before 2.1.9; 3.1.0 to before 3.1.5 Vulnerable ·SixLabors

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

  1. 2026-10-02 Threatist record created from CVE-2024-41131
  2. 2026-10-03 Alias added: GHSA-63p8-c4ww-9cg7

References

  • 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
See all 13 →

Sources