AIKIDO-2026-10968
diffy is vulnerable to Denial of Service (DoS)
53
Medium Risk
This Affects:
diffyTL;DR
The diffy patch parser can panic when processing crafted unified diff input through Patch::from_str or related parsing APIs. Malformed hunk range values can overflow integer arithmetic during header parsing and abort the process, and quoted file paths that decode to non-UTF-8 bytes trigger a panic when converting parsed paths to text patches. Before the fix, untrusted patch content could crash the hosting application. The fix validates hunk ranges with checked arithmetic and returns parse errors instead of panicking on invalid UTF-8 filenames.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
diffy is vulnerable to Denial of Service (DoS) in versions 0.1.0 - 0.4.2.
How to fix this
Upgrade the diffy library to the patch version.
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SOC 2Compliant
ISO 27001Compliant