Infinite loop in ImageSharp - #VU150204
Published: September 16, 2026
Vulnerability identifier: #VU150204
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to a loop with an unreachable exit condition in the ReadValues64 BigTIFF IFD entry parser when decoding a malformed BigTIFF image with a declared entry count exceeding the available entry data. A remote attacker can supply a crafted BigTIFF image with a large IFD entry count to cause a denial of service.
Affected software
ImageSharp
Remediation
Install security update from vendor's website.
ImageSharp - update to 4.1.2