CVEvulnerability
CVE-2026-106116
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-06
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-835
Description
ImageSharp is a 2D graphics library. From 2.0.0 until 4.1.2, ExifReader.ReadValues64 trusts the 64-bit BigTIFF IFD entry count and iterates once per declared entry. When fewer than 20 bytes remain, ExifReader.ReadValue64 returns without advancing the stream or terminating the outer loop, so a small malformed BigTIFF can keep one decoder thread executing for an attacker-controlled duration. This report does not claim worker-pool exhaustion. This issue is fixed in version 4.1.2.
Affected configurations
• sixlabors imagesharp (>= 2.0.0 < 3.2.0)
• sixlabors imagesharp (>= 4.0.0 < 4.1.2)
Related
Weakness · CWE (1)
- CWE-835 Loop with Unreachable Exit Condition weakness
References
- https://github.com/SixLabors/ImageSharp/commit/92b12d72550ebb6be5b1e22e559c361fd863a6ec Patch
- https://github.com/SixLabors/ImageSharp/pull/3187 Issue Tracking, Patch
- https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2 Release Notes
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-wmxv-xphr-5c9g Exploit, Vendor Advisory
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-wmxv-xphr-5c9g Exploit, Vendor Advisory