GHSA-xfmx-53v5-938g
GitHub Security Advisory
⚠ Unreviewed
CRITICAL
Has CVE
Advisory Details
The URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer.
Related CVEs
Key Information
9.0
/10
Dataset
Last updated: September 28, 2025 6:29 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.