Improper Handling of Highly Compressed Data (Data Amplification) Affecting cpp-httplib package, versions [,0.30.1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published14 Jan 2026
- disclosed12 Jan 2026
- creditHritik V
Introduced: 12 Jan 2026
CVE-2026-22776 (opens in a new tab)How to fix?
Upgrade cpp-httplib to version 0.30.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) via the unsafe handling of compressed HTTP request bodies when decompressing data. An attacker can exhaust system memory by sending specially crafted compressed payloads that decompress to a much larger size than the original, leading to resource exhaustion.